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* [RFA 0/4] Remove TYPE_TAG_NAME
@ 2018-04-17 19:51 Tom Tromey
  2018-04-17 19:51 ` [RFA 1/4] Make c_type_print_varspec_suffix static Tom Tromey
                   ` (5 more replies)
  0 siblings, 6 replies; 16+ messages in thread
From: Tom Tromey @ 2018-04-17 19:51 UTC (permalink / raw)
  To: gdb-patches

As mentioned on the list, here is the series to remove TYPE_TAG_NAME.

I think each patch is relatively self-explanatory, so I won't describe
them further here.

Regression tested by the buildbot.

Tom

^ permalink raw reply	[flat|nested] 16+ messages in thread

* [RFA 1/4] Make c_type_print_varspec_suffix static
  2018-04-17 19:51 [RFA 0/4] Remove TYPE_TAG_NAME Tom Tromey
@ 2018-04-17 19:51 ` Tom Tromey
  2018-05-31  1:33   ` Joel Brobecker
  2018-04-17 19:51 ` [RFA 3/4] Remove TYPE_TAG_NAME Tom Tromey
                   ` (4 subsequent siblings)
  5 siblings, 1 reply; 16+ messages in thread
From: Tom Tromey @ 2018-04-17 19:51 UTC (permalink / raw)
  To: gdb-patches; +Cc: Tom Tromey

I noticed that c_type_print_varspec_suffix is only called from
c-typeprint.c, so this patch makes it "static".

ChangeLog
2018-04-17  Tom Tromey  <tom@tromey.com>

	* typeprint.h (c_type_print_varspec_suffix): Don't declare.
	* c-typeprint.c (c_type_print_varspec_suffix): Now static.
---
 gdb/ChangeLog     | 5 +++++
 gdb/c-typeprint.c | 6 +++++-
 gdb/typeprint.h   | 3 ---
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/gdb/c-typeprint.c b/gdb/c-typeprint.c
index 1a8af78669..e26687ba25 100644
--- a/gdb/c-typeprint.c
+++ b/gdb/c-typeprint.c
@@ -50,6 +50,10 @@ enum access_specifier
   s_protected
 };
 
+static void c_type_print_varspec_suffix (struct type *, struct ui_file *, int,
+					 int, int,
+					 const struct type_print_options *);
+
 static void c_type_print_varspec_prefix (struct type *,
 					 struct ui_file *,
 					 int, int, int,
@@ -716,7 +720,7 @@ remove_qualifiers (char *qid)
    needed after the variable name (to describe its type).
    Args work like c_type_print_varspec_prefix.  */
 
-void
+static void
 c_type_print_varspec_suffix (struct type *type,
 			     struct ui_file *stream,
 			     int show, int passed_a_ptr,
diff --git a/gdb/typeprint.h b/gdb/typeprint.h
index 895eebd50a..74006b3058 100644
--- a/gdb/typeprint.h
+++ b/gdb/typeprint.h
@@ -120,9 +120,6 @@ private:
 
 void print_type_scalar (struct type * type, LONGEST, struct ui_file *);
 
-void c_type_print_varspec_suffix (struct type *, struct ui_file *, int,
-				  int, int, const struct type_print_options *);
-
 void c_type_print_args (struct type *, struct ui_file *, int, enum language,
 			const struct type_print_options *);
 
-- 
2.13.6

^ permalink raw reply	[flat|nested] 16+ messages in thread

* [RFA 3/4] Remove TYPE_TAG_NAME
  2018-04-17 19:51 [RFA 0/4] Remove TYPE_TAG_NAME Tom Tromey
  2018-04-17 19:51 ` [RFA 1/4] Make c_type_print_varspec_suffix static Tom Tromey
@ 2018-04-17 19:51 ` Tom Tromey
  2018-04-18 16:57   ` Keith Seitz
  2018-05-31  2:35   ` Joel Brobecker
  2018-04-17 19:51 ` [RFA 4/4] Remove type_name_no_tag and rename type_name_no_tag_or_error Tom Tromey
                   ` (3 subsequent siblings)
  5 siblings, 2 replies; 16+ messages in thread
From: Tom Tromey @ 2018-04-17 19:51 UTC (permalink / raw)
  To: gdb-patches; +Cc: Tom Tromey

TYPE_TAG_NAME has been an occasional source of confusion and bugs.  It
seems to me that it is only useful for C and C++ -- but even there,
not so much, because at least with DWARF there doesn't seem to be any
way to wind up with a type where the name and the tag name are both
non-NULL and different.

So, this patch removes TYPE_TAG_NAME entirely.  This should save a
little memory, but more importantly, it simplifies this part of gdb.

A few minor test suite adjustments were needed.  In some situations
the new code does not yield identical output to the old code.

ChangeLog
2018-04-17  Tom Tromey  <tom@tromey.com>

	* valops.c (enum_constant_from_type, value_namespace_elt)
	(value_maybe_namespace_elt): Update.
	* valarith.c (find_size_for_pointer_math): Update.
	* target-descriptions.c (make_gdb_type): Update.
	* symmisc.c (print_symbol): Update.
	* stabsread.c (define_symbol, read_type)
	(complain_about_struct_wipeout, add_undefined_type)
	(cleanup_undefined_types_1): Update.
	* rust-lang.c (rust_tuple_type_p, rust_slice_type_p)
	(rust_range_type_p, val_print_struct, rust_print_struct_def)
	(rust_internal_print_type, rust_composite_type)
	(rust_evaluate_funcall, rust_evaluate_subexp): Update.
	* python/py-type.c (typy_get_tag): Update.
	* p-typeprint.c (pascal_type_print_base): Update.
	* mdebugread.c (parse_symbol, parse_type): Update.
	* m2-typeprint.c (m2_long_set, m2_record_fields, m2_enum):
	Update.
	* guile/scm-type.c (gdbscm_type_tag): Update.
	* go-lang.c (sixg_string_p): Update.
	* gnu-v3-abi.c (build_gdb_vtable_type, build_std_type_info_type):
	Update.
	* gdbtypes.h (struct main_type) <tag_name>: Remove.
	(TYPE_TAG_NAME): Remove.
	* gdbtypes.c (type_name_no_tag): Simplify.
	(check_typedef, check_types_equal, recursive_dump_type)
	(copy_type_recursive, arch_composite_type): Update.
	* f-typeprint.c (f_type_print_base): Update.  Print "Type" prefix
	in summary mode when needed.
	* eval.c (evaluate_funcall): Update.
	* dwarf2read.c (fixup_go_packaging, read_structure_type)
	(process_structure_scope, read_enumeration_type)
	(read_namespace_type, read_module_type, determine_prefix): Update.
	* cp-support.c (inspect_type): Update.
	* coffread.c (process_coff_symbol, decode_base_type): Update.
	* c-varobj.c (c_is_path_expr_parent): Update.
	* c-typeprint.c (c_type_print_base_struct_union): Update.
	(c_type_print_base_1): Update.  Print struct/class/union/enum in
	summary when using C language.
	* ax-gdb.c (gen_struct_ref, gen_namespace_elt)
	(gen_maybe_namespace_elt): Update.
	* ada-lang.c (ada_type_name): Simplify.
	(empty_record, ada_template_to_fixed_record_type_1)
	(template_to_static_fixed_type)
	(to_record_with_fixed_variant_part, ada_check_typedef): Update.

testsuite/ChangeLog
2018-04-17  Tom Tromey  <tom@tromey.com>

	* gdb.xml/tdesc-regs.exp (load_description): Update expected
	results.
	* gdb.dwarf2/method-ptr.exp: Set language to C++.
	* gdb.dwarf2/member-ptr-forwardref.exp: Set language to C++.
	* gdb.cp/typeid.exp (do_typeid_tests): Update type_re.
	* gdb.base/maint.exp (maint_pass_if): Update.
---
 gdb/ChangeLog                                      | 47 +++++++++++++++++++
 gdb/ada-lang.c                                     | 17 ++-----
 gdb/ax-gdb.c                                       |  6 +--
 gdb/c-typeprint.c                                  | 46 +++++++++++++------
 gdb/c-varobj.c                                     |  3 +-
 gdb/coffread.c                                     | 16 +------
 gdb/cp-support.c                                   |  2 +-
 gdb/dwarf2read.c                                   | 31 ++++---------
 gdb/eval.c                                         |  4 +-
 gdb/f-typeprint.c                                  | 13 ++++--
 gdb/gdbtypes.c                                     | 29 ++----------
 gdb/gdbtypes.h                                     | 21 ++-------
 gdb/gnu-v3-abi.c                                   |  4 +-
 gdb/go-lang.c                                      |  4 +-
 gdb/guile/scm-type.c                               | 10 +++-
 gdb/m2-typeprint.c                                 | 22 +++------
 gdb/mdebugread.c                                   | 14 +++---
 gdb/p-typeprint.c                                  | 20 ++++----
 gdb/python/py-type.c                               | 10 +++-
 gdb/rust-lang.c                                    | 53 +++++++++++-----------
 gdb/stabsread.c                                    | 20 +++-----
 gdb/symmisc.c                                      |  2 +-
 gdb/target-descriptions.c                          |  1 -
 gdb/testsuite/ChangeLog                            |  9 ++++
 gdb/testsuite/gdb.base/maint.exp                   |  2 +-
 gdb/testsuite/gdb.cp/typeid.exp                    |  2 +-
 gdb/testsuite/gdb.dwarf2/member-ptr-forwardref.exp |  1 +
 gdb/testsuite/gdb.dwarf2/method-ptr.exp            |  1 +
 gdb/testsuite/gdb.xml/tdesc-regs.exp               |  4 +-
 gdb/valarith.c                                     |  2 -
 gdb/valops.c                                       |  6 +--
 31 files changed, 215 insertions(+), 207 deletions(-)

diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index de20c43bed..41235def3e 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -8136,18 +8136,15 @@ ada_prefer_type (struct type *type0, struct type *type1)
   return 0;
 }
 
-/* The name of TYPE, which is either its TYPE_NAME, or, if that is
-   null, its TYPE_TAG_NAME.  Null if TYPE is null.  */
+/* The name of TYPE, which is its TYPE_NAME.  Null if TYPE is
+   null.  */
 
 const char *
 ada_type_name (struct type *type)
 {
   if (type == NULL)
     return NULL;
-  else if (TYPE_NAME (type) != NULL)
-    return TYPE_NAME (type);
-  else
-    return TYPE_TAG_NAME (type);
+  return TYPE_NAME (type);
 }
 
 /* Search the list of "descriptive" types associated to TYPE for a type
@@ -8316,7 +8313,6 @@ empty_record (struct type *templ)
   TYPE_FIELDS (type) = NULL;
   INIT_CPLUS_SPECIFIC (type);
   TYPE_NAME (type) = "<empty>";
-  TYPE_TAG_NAME (type) = NULL;
   TYPE_LENGTH (type) = 0;
   return type;
 }
@@ -8375,7 +8371,6 @@ ada_template_to_fixed_record_type_1 (struct type *type,
     TYPE_ALLOC (rtype, nfields * sizeof (struct field));
   memset (TYPE_FIELDS (rtype), 0, sizeof (struct field) * nfields);
   TYPE_NAME (rtype) = ada_type_name (type);
-  TYPE_TAG_NAME (rtype) = NULL;
   TYPE_FIXED_INSTANCE (rtype) = 1;
 
   off = 0;
@@ -8652,7 +8647,6 @@ template_to_static_fixed_type (struct type *type0)
 	      memcpy (TYPE_FIELDS (type), TYPE_FIELDS (type0),
 		      sizeof (struct field) * nfields);
 	      TYPE_NAME (type) = ada_type_name (type0);
-	      TYPE_TAG_NAME (type) = NULL;
 	      TYPE_FIXED_INSTANCE (type) = 1;
 	      TYPE_LENGTH (type) = 0;
 	    }
@@ -8702,7 +8696,6 @@ to_record_with_fixed_variant_part (struct type *type, const gdb_byte *valaddr,
   memcpy (TYPE_FIELDS (rtype), TYPE_FIELDS (type),
           sizeof (struct field) * nfields);
   TYPE_NAME (rtype) = ada_type_name (type);
-  TYPE_TAG_NAME (rtype) = NULL;
   TYPE_FIXED_INSTANCE (rtype) = 1;
   TYPE_LENGTH (rtype) = TYPE_LENGTH (type);
 
@@ -9313,11 +9306,11 @@ ada_check_typedef (struct type *type)
   type = check_typedef (type);
   if (type == NULL || TYPE_CODE (type) != TYPE_CODE_ENUM
       || !TYPE_STUB (type)
-      || TYPE_TAG_NAME (type) == NULL)
+      || TYPE_NAME (type) == NULL)
     return type;
   else
     {
-      const char *name = TYPE_TAG_NAME (type);
+      const char *name = TYPE_NAME (type);
       struct type *type1 = ada_find_any_type (name);
 
       if (type1 == NULL)
diff --git a/gdb/ax-gdb.c b/gdb/ax-gdb.c
index 9a44d4b750..2468061aad 100644
--- a/gdb/ax-gdb.c
+++ b/gdb/ax-gdb.c
@@ -1533,7 +1533,7 @@ gen_struct_ref (struct agent_expr *ax, struct axs_value *value,
   
   if (!found)
     error (_("Couldn't find member named `%s' in struct/union/class `%s'"),
-	   field, TYPE_TAG_NAME (type));
+	   field, TYPE_NAME (type));
 }
 
 static int
@@ -1629,7 +1629,7 @@ gen_namespace_elt (struct agent_expr *ax, struct axs_value *value,
 
   if (!found)
     error (_("No symbol \"%s\" in namespace \"%s\"."), 
-	   name, TYPE_TAG_NAME (curtype));
+	   name, TYPE_NAME (curtype));
 
   return found;
 }
@@ -1644,7 +1644,7 @@ static int
 gen_maybe_namespace_elt (struct agent_expr *ax, struct axs_value *value,
 			 const struct type *curtype, char *name)
 {
-  const char *namespace_name = TYPE_TAG_NAME (curtype);
+  const char *namespace_name = TYPE_NAME (curtype);
   struct block_symbol sym;
 
   sym = cp_lookup_symbol_namespace (namespace_name, name,
diff --git a/gdb/c-typeprint.c b/gdb/c-typeprint.c
index a53331aefc..846727f298 100644
--- a/gdb/c-typeprint.c
+++ b/gdb/c-typeprint.c
@@ -1174,13 +1174,13 @@ c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
      spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed
      enum}" tag for unnamed struct/union/enum's, which we don't
      want to print.  */
-  if (TYPE_TAG_NAME (type) != NULL
-      && !startswith (TYPE_TAG_NAME (type), "{unnamed"))
+  if (TYPE_NAME (type) != NULL
+      && !startswith (TYPE_NAME (type), "{unnamed"))
     {
       /* When printing the tag name, we are still effectively
 	 printing in the outer context, hence the use of FLAGS
 	 here.  */
-      print_name_maybe_canonical (TYPE_TAG_NAME (type), flags, stream);
+      print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
       if (show > 0)
 	fputs_filtered (" ", stream);
     }
@@ -1189,10 +1189,10 @@ c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
     {
       /* If we just printed a tag name, no need to print anything
 	 else.  */
-      if (TYPE_TAG_NAME (type) == NULL)
+      if (TYPE_NAME (type) == NULL)
 	fprintf_filtered (stream, "{...}");
     }
-  else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
+  else if (show > 0 || TYPE_NAME (type) == NULL)
     {
       struct type *basetype;
       int vptr_fieldno;
@@ -1602,15 +1602,31 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
 
   /* When SHOW is zero or less, and there is a valid type name, then
      always just print the type name directly from the type.  */
-  /* If we have "typedef struct foo {. . .} bar;" do we want to print
-     it as "struct foo" or as "bar"?  Pick the latter, because C++
-     folk tend to expect things like "class5 *foo" rather than "struct
-     class5 *foo".  */
 
   if (show <= 0
       && TYPE_NAME (type) != NULL)
     {
       c_type_print_modifier (type, stream, 0, 1);
+
+      /* If we have "typedef struct foo {. . .} bar;" do we want to
+	 print it as "struct foo" or as "bar"?  Pick the latter for
+	 C++, because C++ folk tend to expect things like "class5
+	 *foo" rather than "struct class5 *foo".  */
+      if (language == language_c || language == language_minimal)
+	{
+	  if (TYPE_CODE (type) == TYPE_CODE_UNION)
+	    fprintf_filtered (stream, "union ");
+	  else if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
+	    {
+	      if (TYPE_DECLARED_CLASS (type))
+		fprintf_filtered (stream, "class ");
+	      else
+		fprintf_filtered (stream, "struct ");
+	    }
+	  else if (TYPE_CODE (type) == TYPE_CODE_ENUM)
+	    fprintf_filtered (stream, "enum ");
+	}
+
       print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
       return;
     }
@@ -1661,10 +1677,10 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
          "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
          tag for unnamed struct/union/enum's, which we don't
          want to print.  */
-      if (TYPE_TAG_NAME (type) != NULL
-	  && !startswith (TYPE_TAG_NAME (type), "{unnamed"))
+      if (TYPE_NAME (type) != NULL
+	  && !startswith (TYPE_NAME (type), "{unnamed"))
 	{
-	  print_name_maybe_canonical (TYPE_TAG_NAME (type), flags, stream);
+	  print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
 	  if (show > 0)
 	    fputs_filtered (" ", stream);
 	}
@@ -1674,10 +1690,10 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
 	{
 	  /* If we just printed a tag name, no need to print anything
 	     else.  */
-	  if (TYPE_TAG_NAME (type) == NULL)
+	  if (TYPE_NAME (type) == NULL)
 	    fprintf_filtered (stream, "{...}");
 	}
-      else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
+      else if (show > 0 || TYPE_NAME (type) == NULL)
 	{
 	  LONGEST lastval = 0;
 
@@ -1786,7 +1802,7 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
 
     case TYPE_CODE_NAMESPACE:
       fputs_filtered ("namespace ", stream);
-      fputs_filtered (TYPE_TAG_NAME (type), stream);
+      fputs_filtered (TYPE_NAME (type), stream);
       break;
 
     default:
diff --git a/gdb/c-varobj.c b/gdb/c-varobj.c
index 03656c0a81..7f12989979 100644
--- a/gdb/c-varobj.c
+++ b/gdb/c-varobj.c
@@ -145,8 +145,7 @@ c_is_path_expr_parent (const struct varobj *var)
   /* Anonymous unions and structs are also not path_expr parents.  */
   if ((TYPE_CODE (type) == TYPE_CODE_STRUCT
        || TYPE_CODE (type) == TYPE_CODE_UNION)
-      && TYPE_NAME (type) == NULL
-      && TYPE_TAG_NAME (type) == NULL)
+      && TYPE_NAME (type) == NULL)
     {
       const struct varobj *parent = var->parent;
 
diff --git a/gdb/coffread.c b/gdb/coffread.c
index cad3e7e2f1..e07a440443 100644
--- a/gdb/coffread.c
+++ b/gdb/coffread.c
@@ -1787,11 +1787,11 @@ process_coff_symbol (struct coff_symbol *cs,
 	  /* Some compilers try to be helpful by inventing "fake"
 	     names for anonymous enums, structures, and unions, like
 	     "~0fake" or ".0fake".  Thanks, but no thanks...  */
-	  if (TYPE_TAG_NAME (SYMBOL_TYPE (sym)) == 0)
+	  if (TYPE_NAME (SYMBOL_TYPE (sym)) == 0)
 	    if (SYMBOL_LINKAGE_NAME (sym) != NULL
 		&& *SYMBOL_LINKAGE_NAME (sym) != '~'
 		&& *SYMBOL_LINKAGE_NAME (sym) != '.')
-	      TYPE_TAG_NAME (SYMBOL_TYPE (sym)) =
+	      TYPE_NAME (SYMBOL_TYPE (sym)) =
 		concat (SYMBOL_LINKAGE_NAME (sym), (char *)NULL);
 
 	  add_symbol_to_list (sym, &file_symbols);
@@ -1957,10 +1957,6 @@ decode_base_type (struct coff_symbol *cs,
 	  type = coff_alloc_type (cs->c_symnum);
 	  TYPE_CODE (type) = TYPE_CODE_STRUCT;
 	  TYPE_NAME (type) = NULL;
-	  /* This used to set the tag to "<opaque>".  But I think
-	     setting it to NULL is right, and the printing code can
-	     print it as "struct {...}".  */
-	  TYPE_TAG_NAME (type) = NULL;
 	  INIT_CPLUS_SPECIFIC (type);
 	  TYPE_LENGTH (type) = 0;
 	  TYPE_FIELDS (type) = 0;
@@ -1981,10 +1977,6 @@ decode_base_type (struct coff_symbol *cs,
 	  /* Anonymous union type.  */
 	  type = coff_alloc_type (cs->c_symnum);
 	  TYPE_NAME (type) = NULL;
-	  /* This used to set the tag to "<opaque>".  But I think
-	     setting it to NULL is right, and the printing code can
-	     print it as "union {...}".  */
-	  TYPE_TAG_NAME (type) = NULL;
 	  INIT_CPLUS_SPECIFIC (type);
 	  TYPE_LENGTH (type) = 0;
 	  TYPE_FIELDS (type) = 0;
@@ -2007,10 +1999,6 @@ decode_base_type (struct coff_symbol *cs,
 	  type = coff_alloc_type (cs->c_symnum);
 	  TYPE_CODE (type) = TYPE_CODE_ENUM;
 	  TYPE_NAME (type) = NULL;
-	  /* This used to set the tag to "<opaque>".  But I think
-	     setting it to NULL is right, and the printing code can
-	     print it as "enum {...}".  */
-	  TYPE_TAG_NAME (type) = NULL;
 	  TYPE_LENGTH (type) = 0;
 	  TYPE_FIELDS (type) = 0;
 	  TYPE_NFIELDS (type) = 0;
diff --git a/gdb/cp-support.c b/gdb/cp-support.c
index dde417be80..c16b67171f 100644
--- a/gdb/cp-support.c
+++ b/gdb/cp-support.c
@@ -199,7 +199,7 @@ inspect_type (struct demangle_parse_info *info,
 	      && strcmp (TYPE_NAME (type), name) == 0)
 	    return 0;
 
-	  is_anon = (TYPE_TAG_NAME (type) == NULL
+	  is_anon = (TYPE_NAME (type) == NULL
 		     && (TYPE_CODE (type) == TYPE_CODE_ENUM
 			 || TYPE_CODE (type) == TYPE_CODE_STRUCT
 			 || TYPE_CODE (type) == TYPE_CODE_UNION));
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 8dbe12db02..78c36887ee 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -9778,8 +9778,6 @@ fixup_go_packaging (struct dwarf2_cu *cu)
 				     saved_package_name);
       struct symbol *sym;
 
-      TYPE_TAG_NAME (type) = TYPE_NAME (type);
-
       sym = allocate_symbol (objfile);
       SYMBOL_SET_LANGUAGE (sym, language_go, &objfile->objfile_obstack);
       SYMBOL_SET_NAMES (sym, saved_package_name,
@@ -15621,18 +15619,13 @@ read_structure_type (struct die_info *die, struct dwarf2_cu *cu)
 	  if (get_die_type (die, cu) != NULL)
 	    return get_die_type (die, cu);
 
-	  TYPE_TAG_NAME (type) = full_name;
-	  if (die->tag == DW_TAG_structure_type
-	      || die->tag == DW_TAG_class_type)
-	    TYPE_NAME (type) = TYPE_TAG_NAME (type);
+	  TYPE_NAME (type) = full_name;
 	}
       else
 	{
 	  /* The name is already allocated along with this objfile, so
 	     we don't need to duplicate it for the type.  */
-	  TYPE_TAG_NAME (type) = name;
-	  if (die->tag == DW_TAG_class_type)
-	    TYPE_NAME (type) = TYPE_TAG_NAME (type);
+	  TYPE_NAME (type) = name;
 	}
     }
 
@@ -15913,7 +15906,7 @@ process_structure_scope (struct die_info *die, struct dwarf2_cu *cu)
 		    complaint (&symfile_complaints,
 			       _("virtual function table pointer "
 				 "not found when defining class '%s'"),
-			       TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) :
+			       TYPE_NAME (type) ? TYPE_NAME (type) :
 			       "");
 		}
 	      else
@@ -16104,7 +16097,7 @@ read_enumeration_type (struct die_info *die, struct dwarf2_cu *cu)
   TYPE_CODE (type) = TYPE_CODE_ENUM;
   name = dwarf2_full_name (NULL, die, cu);
   if (name != NULL)
-    TYPE_TAG_NAME (type) = name;
+    TYPE_NAME (type) = name;
 
   attr = dwarf2_attr (die, DW_AT_type, cu);
   if (attr != NULL)
@@ -16649,7 +16642,6 @@ read_namespace_type (struct die_info *die, struct dwarf2_cu *cu)
 
   /* Create the type.  */
   type = init_type (objfile, TYPE_CODE_NAMESPACE, 0, name);
-  TYPE_TAG_NAME (type) = TYPE_NAME (type);
 
   return set_die_type (die, type, cu);
 }
@@ -16715,9 +16707,6 @@ read_module_type (struct die_info *die, struct dwarf2_cu *cu)
                sect_offset_str (die->sect_off));
   type = init_type (objfile, TYPE_CODE_MODULE, 0, module_name);
 
-  /* determine_prefix uses TYPE_TAG_NAME.  */
-  TYPE_TAG_NAME (type) = TYPE_NAME (type);
-
   return set_die_type (die, type, cu);
 }
 
@@ -22155,18 +22144,18 @@ determine_prefix (struct die_info *die, struct dwarf2_cu *cu)
 	   DW_TAG_namespace DIEs with a name of "::" for the global namespace.
 	   Work around this problem here.  */
 	if (cu->language == language_cplus
-	    && strcmp (TYPE_TAG_NAME (parent_type), "::") == 0)
+	    && strcmp (TYPE_NAME (parent_type), "::") == 0)
 	  return "";
 	/* We give a name to even anonymous namespaces.  */
-	return TYPE_TAG_NAME (parent_type);
+	return TYPE_NAME (parent_type);
       case DW_TAG_class_type:
       case DW_TAG_interface_type:
       case DW_TAG_structure_type:
       case DW_TAG_union_type:
       case DW_TAG_module:
 	parent_type = read_type_die (parent, cu);
-	if (TYPE_TAG_NAME (parent_type) != NULL)
-	  return TYPE_TAG_NAME (parent_type);
+	if (TYPE_NAME (parent_type) != NULL)
+	  return TYPE_NAME (parent_type);
 	else
 	  /* An anonymous structure is only allowed non-static data
 	     members; no typedefs, no member functions, et cetera.
@@ -22191,8 +22180,8 @@ determine_prefix (struct die_info *die, struct dwarf2_cu *cu)
 	parent_type = read_type_die (parent, cu);
 	if (TYPE_DECLARED_CLASS (parent_type))
 	  {
-	    if (TYPE_TAG_NAME (parent_type) != NULL)
-	      return TYPE_TAG_NAME (parent_type);
+	    if (TYPE_NAME (parent_type) != NULL)
+	      return TYPE_NAME (parent_type);
 	    return "";
 	  }
 	/* Fall through.  */
diff --git a/gdb/eval.c b/gdb/eval.c
index b6fbfcf6c9..0bed4aa3fc 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -984,13 +984,13 @@ evaluate_funcall (type *expect_type, expression *exp, int *pos,
       function_name = NULL;
       if (TYPE_CODE (type) == TYPE_CODE_NAMESPACE)
 	{
-	  function = cp_lookup_symbol_namespace (TYPE_TAG_NAME (type),
+	  function = cp_lookup_symbol_namespace (TYPE_NAME (type),
 						 name,
 						 get_selected_block (0),
 						 VAR_DOMAIN).symbol;
 	  if (function == NULL)
 	    error (_("No symbol \"%s\" in namespace \"%s\"."),
-		   name, TYPE_TAG_NAME (type));
+		   name, TYPE_NAME (type));
 
 	  tem = 1;
 	  /* arg2 is left as NULL on purpose.  */
diff --git a/gdb/f-typeprint.c b/gdb/f-typeprint.c
index f14f1811f4..3f13c111ac 100644
--- a/gdb/f-typeprint.c
+++ b/gdb/f-typeprint.c
@@ -290,7 +290,12 @@ f_type_print_base (struct type *type, struct ui_file *stream, int show,
 
   if ((show <= 0) && (TYPE_NAME (type) != NULL))
     {
-      fprintfi_filtered (level, stream, "%s", TYPE_NAME (type));
+      const char *prefix = "";
+      if (TYPE_CODE (type) == TYPE_CODE_UNION)
+	prefix = "Type, C_Union :: ";
+      else if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
+	prefix = "Type ";
+      fprintfi_filtered (level, stream, "%s%s", prefix, TYPE_NAME (type));
       return;
     }
 
@@ -370,7 +375,7 @@ f_type_print_base (struct type *type, struct ui_file *stream, int show,
 	fprintfi_filtered (level, stream, "Type, C_Union :: ");
       else
 	fprintfi_filtered (level, stream, "Type ");
-      fputs_filtered (TYPE_TAG_NAME (type), stream);
+      fputs_filtered (TYPE_NAME (type), stream);
       /* According to the definition,
          we only print structure elements in case show > 0.  */
       if (show > 0)
@@ -387,12 +392,12 @@ f_type_print_base (struct type *type, struct ui_file *stream, int show,
 	      fputs_filtered ("\n", stream);
 	    }
 	  fprintfi_filtered (level, stream, "End Type ");
-	  fputs_filtered (TYPE_TAG_NAME (type), stream);
+	  fputs_filtered (TYPE_NAME (type), stream);
 	}
       break;
 
     case TYPE_CODE_MODULE:
-      fprintfi_filtered (level, stream, "module %s", TYPE_TAG_NAME (type));
+      fprintfi_filtered (level, stream, "module %s", TYPE_NAME (type));
       break;
 
     default_case:
diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c
index b3a037971e..b3a388656e 100644
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -1469,12 +1469,6 @@ smash_to_method_type (struct type *type, struct type *self_type,
 const char *
 type_name_no_tag (const struct type *type)
 {
-  if (TYPE_TAG_NAME (type) != NULL)
-    return TYPE_TAG_NAME (type);
-
-  /* Is there code which expects this to return the name if there is
-     no tag name?  My guess is that this is mainly used for C++ in
-     cases where the two will always be the same.  */
   return TYPE_NAME (type);
 }
 
@@ -2445,10 +2439,8 @@ check_typedef (struct type *type)
 	    return make_qualified_type (type, instance_flags, NULL);
 
 	  name = type_name_no_tag (type);
-	  /* FIXME: shouldn't we separately check the TYPE_NAME and
-	     the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or
-	     VAR_DOMAIN as appropriate?  (this code was written before
-	     TYPE_NAME and TYPE_TAG_NAME were separate).  */
+	  /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or
+	     VAR_DOMAIN as appropriate?  */
 	  if (name == NULL)
 	    {
 	      stub_noname_complaint ();
@@ -2534,10 +2526,8 @@ check_typedef (struct type *type)
   else if (TYPE_STUB (type) && !currently_reading_symtab)
     {
       const char *name = type_name_no_tag (type);
-      /* FIXME: shouldn't we separately check the TYPE_NAME and the
-         TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN
-         as appropriate?  (this code was written before TYPE_NAME and
-         TYPE_TAG_NAME were separate).  */
+      /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or VAR_DOMAIN
+         as appropriate?  */
       struct symbol *sym;
 
       if (name == NULL)
@@ -3547,9 +3537,6 @@ check_types_equal (struct type *type1, struct type *type2,
       || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2))
     return 0;
 
-  if (!compare_maybe_null_strings (TYPE_TAG_NAME (type1),
-				   TYPE_TAG_NAME (type2)))
-    return 0;
   if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2)))
     return 0;
 
@@ -4419,10 +4406,6 @@ recursive_dump_type (struct type *type, int spaces)
 		    TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>");
   gdb_print_host_address (TYPE_NAME (type), gdb_stdout);
   printf_filtered (")\n");
-  printfi_filtered (spaces, "tagname '%s' (",
-		    TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>");
-  gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout);
-  printf_filtered (")\n");
   printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type));
   switch (TYPE_CODE (type))
     {
@@ -4806,8 +4789,6 @@ copy_type_recursive (struct objfile *objfile,
 
   if (TYPE_NAME (type))
     TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type));
-  if (TYPE_TAG_NAME (type))
-    TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type));
 
   TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type);
   TYPE_LENGTH (new_type) = TYPE_LENGTH (type);
@@ -5145,7 +5126,7 @@ arch_composite_type (struct gdbarch *gdbarch, const char *name,
 
   gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION);
   t = arch_type (gdbarch, code, 0, NULL);
-  TYPE_TAG_NAME (t) = name;
+  TYPE_NAME (t) = name;
   INIT_CPLUS_SPECIFIC (t);
   return t;
 }
diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h
index 552a2a2a16..70dac75855 100644
--- a/gdb/gdbtypes.h
+++ b/gdb/gdbtypes.h
@@ -721,26 +721,12 @@ struct main_type
 
   /* * Name of this type, or NULL if none.
 
-     This is used for printing only, except by poorly designed C++
-     code.  For looking up a name, look for a symbol in the
-     VAR_DOMAIN.  This is generally allocated in the objfile's
-     obstack.  However coffread.c uses malloc.  */
+     This is used for printing only.  For looking up a name, look for
+     a symbol in the VAR_DOMAIN.  This is generally allocated in the
+     objfile's obstack.  However coffread.c uses malloc.  */
 
   const char *name;
 
-  /* * Tag name for this type, or NULL if none.  This means that the
-     name of the type consists of a keyword followed by the tag name.
-     Which keyword is determined by the type code ("struct" for
-     TYPE_CODE_STRUCT, etc.).  As far as I know C/C++ are the only
-     languages with this feature.
-
-     This is used for printing only, except by poorly designed C++ code.
-     For looking up a name, look for a symbol in the STRUCT_DOMAIN.
-     One more legitimate use is that if TYPE_STUB is set, this is
-     the name to use to look for definitions in other files.  */
-
-  const char *tag_name;
-
   /* * Every type is now associated with a particular objfile, and the
      type is allocated on the objfile_obstack for that objfile.  One
      problem however, is that there are times when gdb allocates new
@@ -1281,7 +1267,6 @@ extern void allocate_gnat_aux_type (struct type *);
 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
-#define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
diff --git a/gdb/gnu-v3-abi.c b/gdb/gnu-v3-abi.c
index 859187f2e9..781acaa409 100644
--- a/gdb/gnu-v3-abi.c
+++ b/gdb/gnu-v3-abi.c
@@ -164,7 +164,7 @@ build_gdb_vtable_type (struct gdbarch *arch)
   t = arch_type (arch, TYPE_CODE_STRUCT, offset * TARGET_CHAR_BIT, NULL);
   TYPE_NFIELDS (t) = field - field_list;
   TYPE_FIELDS (t) = field_list;
-  TYPE_TAG_NAME (t) = "gdb_gnu_v3_abi_vtable";
+  TYPE_NAME (t) = "gdb_gnu_v3_abi_vtable";
   INIT_CPLUS_SPECIFIC (t);
 
   return make_type_with_address_space (t, TYPE_INSTANCE_FLAG_CODE_SPACE);
@@ -1028,7 +1028,7 @@ build_std_type_info_type (struct gdbarch *arch)
   t = arch_type (arch, TYPE_CODE_STRUCT, offset * TARGET_CHAR_BIT, NULL);
   TYPE_NFIELDS (t) = field - field_list;
   TYPE_FIELDS (t) = field_list;
-  TYPE_TAG_NAME (t) = "gdb_gnu_v3_type_info";
+  TYPE_NAME (t) = "gdb_gnu_v3_type_info";
   INIT_CPLUS_SPECIFIC (t);
 
   return t;
diff --git a/gdb/go-lang.c b/gdb/go-lang.c
index e9cba7713c..60ab2f3dc3 100644
--- a/gdb/go-lang.c
+++ b/gdb/go-lang.c
@@ -106,8 +106,8 @@ static int
 sixg_string_p (struct type *type)
 {
   if (TYPE_NFIELDS (type) == 2
-      && TYPE_TAG_NAME (type) != NULL
-      && strcmp (TYPE_TAG_NAME (type), "string") == 0)
+      && TYPE_NAME (type) != NULL
+      && strcmp (TYPE_NAME (type), "string") == 0)
     return 1;
 
   return 0;
diff --git a/gdb/guile/scm-type.c b/gdb/guile/scm-type.c
index ce67695b76..949e0dca82 100644
--- a/gdb/guile/scm-type.c
+++ b/gdb/guile/scm-type.c
@@ -576,10 +576,16 @@ gdbscm_type_tag (SCM self)
   type_smob *t_smob
     = tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
   struct type *type = t_smob->type;
+  const char *tagname = nullptr;
 
-  if (!TYPE_TAG_NAME (type))
+  if (TYPE_CODE (type) == TYPE_CODE_STRUCT
+      || TYPE_CODE (type) == TYPE_CODE_UNION
+      || TYPE_CODE (type) == TYPE_CODE_ENUM)
+    tagname = TYPE_NAME (type);
+
+  if (tagname == nullptr)
     return SCM_BOOL_F;
-  return gdbscm_scm_from_c_string (TYPE_TAG_NAME (type));
+  return gdbscm_scm_from_c_string (tagname);
 }
 
 /* (type-name <gdb:type>) -> string
diff --git a/gdb/m2-typeprint.c b/gdb/m2-typeprint.c
index 27e9429211..7279ab5b54 100644
--- a/gdb/m2-typeprint.c
+++ b/gdb/m2-typeprint.c
@@ -439,22 +439,14 @@ m2_long_set (struct type *type, struct ui_file *stream, int show, int level,
 
   if (m2_is_long_set (type))
     {
-      if (TYPE_TAG_NAME (type) != NULL)
-	{
-	  fputs_filtered (TYPE_TAG_NAME (type), stream);
-	  if (show == 0)
-	    return 1;
-	}
-      else if (TYPE_NAME (type) != NULL)
+      if (TYPE_NAME (type) != NULL)
 	{
 	  fputs_filtered (TYPE_NAME (type), stream);
 	  if (show == 0)
 	    return 1;
+	  fputs_filtered (" = ", stream);
 	}
 
-      if (TYPE_TAG_NAME (type) != NULL || TYPE_NAME (type) != NULL)
-	fputs_filtered (" = ", stream);
-
       if (get_long_set_bounds (type, &low, &high))
 	{
 	  fprintf_filtered(stream, "SET OF ");
@@ -537,11 +529,11 @@ m2_record_fields (struct type *type, struct ui_file *stream, int show,
 		  int level, const struct type_print_options *flags)
 {
   /* Print the tag if it exists.  */
-  if (TYPE_TAG_NAME (type) != NULL)
+  if (TYPE_NAME (type) != NULL)
     {
-      if (!startswith (TYPE_TAG_NAME (type), "$$"))
+      if (!startswith (TYPE_NAME (type), "$$"))
 	{
-	  fputs_filtered (TYPE_TAG_NAME (type), stream);
+	  fputs_filtered (TYPE_NAME (type), stream);
 	  if (show > 0)
 	    fprintf_filtered (stream, " = ");
 	}
@@ -601,10 +593,10 @@ m2_enum (struct type *type, struct ui_file *stream, int show, int level)
   if (show < 0)
     {
       /* If we just printed a tag name, no need to print anything else.  */
-      if (TYPE_TAG_NAME (type) == NULL)
+      if (TYPE_NAME (type) == NULL)
 	fprintf_filtered (stream, "(...)");
     }
-  else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
+  else if (show > 0 || TYPE_NAME (type) == NULL)
     {
       fprintf_filtered (stream, "(");
       len = TYPE_NFIELDS (type);
diff --git a/gdb/mdebugread.c b/gdb/mdebugread.c
index c0bce55148..a760fd9692 100644
--- a/gdb/mdebugread.c
+++ b/gdb/mdebugread.c
@@ -1031,10 +1031,10 @@ parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend,
 	   (.Fxx or .xxfake or empty) for unnamed struct/union/enums.
 	   Alpha cc puts out an sh->iss of zero for those.  */
 	if (sh->iss == 0 || name[0] == '.' || name[0] == '\0')
-	  TYPE_TAG_NAME (t) = NULL;
+	  TYPE_NAME (t) = NULL;
 	else
-	  TYPE_TAG_NAME (t) = obconcat (&mdebugread_objfile->objfile_obstack,
-					name, (char *) NULL);
+	  TYPE_NAME (t) = obconcat (&mdebugread_objfile->objfile_obstack,
+				    name, (char *) NULL);
 
 	TYPE_CODE (t) = type_code;
 	TYPE_LENGTH (t) = sh->value;
@@ -1699,10 +1699,10 @@ parse_type (int fd, union aux_ext *ax, unsigned int aux_index, int *bs,
 	  /* Do not set the tag name if it is a compiler generated tag name
 	     (.Fxx or .xxfake or empty) for unnamed struct/union/enums.  */
 	  if (name[0] == '.' || name[0] == '\0')
-	    TYPE_TAG_NAME (tp) = NULL;
-	  else if (TYPE_TAG_NAME (tp) == NULL
-		   || strcmp (TYPE_TAG_NAME (tp), name) != 0)
-	    TYPE_TAG_NAME (tp)
+	    TYPE_NAME (tp) = NULL;
+	  else if (TYPE_NAME (tp) == NULL
+		   || strcmp (TYPE_NAME (tp), name) != 0)
+	    TYPE_NAME (tp)
 	      = ((const char *)
 		 obstack_copy0 (&mdebugread_objfile->objfile_obstack,
 				name, strlen (name)));
diff --git a/gdb/p-typeprint.c b/gdb/p-typeprint.c
index e35e0fbd80..f82a2bc981 100644
--- a/gdb/p-typeprint.c
+++ b/gdb/p-typeprint.c
@@ -522,9 +522,9 @@ pascal_type_print_base (struct type *type, struct ui_file *stream, int show,
          only after args !!  */
       break;
     case TYPE_CODE_STRUCT:
-      if (TYPE_TAG_NAME (type) != NULL)
+      if (TYPE_NAME (type) != NULL)
 	{
-	  fputs_filtered (TYPE_TAG_NAME (type), stream);
+	  fputs_filtered (TYPE_NAME (type), stream);
 	  fputs_filtered (" = ", stream);
 	}
       if (HAVE_CPLUS_STRUCT (type))
@@ -538,9 +538,9 @@ pascal_type_print_base (struct type *type, struct ui_file *stream, int show,
       goto struct_union;
 
     case TYPE_CODE_UNION:
-      if (TYPE_TAG_NAME (type) != NULL)
+      if (TYPE_NAME (type) != NULL)
 	{
-	  fputs_filtered (TYPE_TAG_NAME (type), stream);
+	  fputs_filtered (TYPE_NAME (type), stream);
 	  fputs_filtered (" = ", stream);
 	}
       fprintf_filtered (stream, "case <?> of ");
@@ -550,10 +550,10 @@ pascal_type_print_base (struct type *type, struct ui_file *stream, int show,
       if (show < 0)
 	{
 	  /* If we just printed a tag name, no need to print anything else.  */
-	  if (TYPE_TAG_NAME (type) == NULL)
+	  if (TYPE_NAME (type) == NULL)
 	    fprintf_filtered (stream, "{...}");
 	}
-      else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
+      else if (show > 0 || TYPE_NAME (type) == NULL)
 	{
 	  pascal_type_print_derivation_info (stream, type);
 
@@ -740,9 +740,9 @@ pascal_type_print_base (struct type *type, struct ui_file *stream, int show,
       break;
 
     case TYPE_CODE_ENUM:
-      if (TYPE_TAG_NAME (type) != NULL)
+      if (TYPE_NAME (type) != NULL)
 	{
-	  fputs_filtered (TYPE_TAG_NAME (type), stream);
+	  fputs_filtered (TYPE_NAME (type), stream);
 	  if (show > 0)
 	    fputs_filtered (" ", stream);
 	}
@@ -753,10 +753,10 @@ pascal_type_print_base (struct type *type, struct ui_file *stream, int show,
       if (show < 0)
 	{
 	  /* If we just printed a tag name, no need to print anything else.  */
-	  if (TYPE_TAG_NAME (type) == NULL)
+	  if (TYPE_NAME (type) == NULL)
 	    fprintf_filtered (stream, "(...)");
 	}
-      else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
+      else if (show > 0 || TYPE_NAME (type) == NULL)
 	{
 	  fprintf_filtered (stream, "(");
 	  len = TYPE_NFIELDS (type);
diff --git a/gdb/python/py-type.c b/gdb/python/py-type.c
index 8a948eeaa6..6cbb1b663d 100644
--- a/gdb/python/py-type.c
+++ b/gdb/python/py-type.c
@@ -416,10 +416,16 @@ static PyObject *
 typy_get_tag (PyObject *self, void *closure)
 {
   struct type *type = ((type_object *) self)->type;
+  const char *tagname = nullptr;
 
-  if (!TYPE_TAG_NAME (type))
+  if (TYPE_CODE (type) == TYPE_CODE_STRUCT
+      || TYPE_CODE (type) == TYPE_CODE_UNION
+      || TYPE_CODE (type) == TYPE_CODE_ENUM)
+    tagname = TYPE_NAME (type);
+
+  if (tagname == nullptr)
     Py_RETURN_NONE;
-  return PyString_FromString (TYPE_TAG_NAME (type));
+  return PyString_FromString (tagname);
 }
 
 /* Return the type, stripped of typedefs. */
diff --git a/gdb/rust-lang.c b/gdb/rust-lang.c
index cf8a15ee43..aa02ede52f 100644
--- a/gdb/rust-lang.c
+++ b/gdb/rust-lang.c
@@ -95,8 +95,8 @@ rust_tuple_type_p (struct type *type)
      nothing else in the debuginfo to distinguish a tuple from a
      struct.  */
   return (TYPE_CODE (type) == TYPE_CODE_STRUCT
-	  && TYPE_TAG_NAME (type) != NULL
-	  && TYPE_TAG_NAME (type)[0] == '(');
+	  && TYPE_NAME (type) != NULL
+	  && TYPE_NAME (type)[0] == '(');
 }
 
 /* Return true if all non-static fields of a structlike type are in a
@@ -143,9 +143,9 @@ static bool
 rust_slice_type_p (struct type *type)
 {
   return (TYPE_CODE (type) == TYPE_CODE_STRUCT
-	  && TYPE_TAG_NAME (type) != NULL
-	  && (strncmp (TYPE_TAG_NAME (type), "&[", 2) == 0
-	      || strcmp (TYPE_TAG_NAME (type), "&str") == 0));
+	  && TYPE_NAME (type) != NULL
+	  && (strncmp (TYPE_NAME (type), "&[", 2) == 0
+	      || strcmp (TYPE_NAME (type), "&str") == 0));
 }
 
 /* Return true if TYPE is a range type, otherwise false.  */
@@ -157,8 +157,8 @@ rust_range_type_p (struct type *type)
 
   if (TYPE_CODE (type) != TYPE_CODE_STRUCT
       || TYPE_NFIELDS (type) > 2
-      || TYPE_TAG_NAME (type) == NULL
-      || strstr (TYPE_TAG_NAME (type), "::Range") == NULL)
+      || TYPE_NAME (type) == NULL
+      || strstr (TYPE_NAME (type), "::Range") == NULL)
     return false;
 
   if (TYPE_NFIELDS (type) == 0)
@@ -342,13 +342,13 @@ val_print_struct (struct type *type, int embedded_offset,
 
   if (!is_tuple)
     {
-      if (TYPE_TAG_NAME (type) != NULL)
-        fprintf_filtered (stream, "%s", TYPE_TAG_NAME (type));
+      if (TYPE_NAME (type) != NULL)
+        fprintf_filtered (stream, "%s", TYPE_NAME (type));
 
       if (TYPE_NFIELDS (type) == 0)
         return;
 
-      if (TYPE_TAG_NAME (type) != NULL)
+      if (TYPE_NAME (type) != NULL)
         fputs_filtered (" ", stream);
     }
 
@@ -617,7 +617,7 @@ rust_print_struct_def (struct type *type, const char *varstring,
   /* Print a tuple type simply.  */
   if (rust_tuple_type_p (type))
     {
-      fputs_filtered (TYPE_TAG_NAME (type), stream);
+      fputs_filtered (TYPE_NAME (type), stream);
       return;
     }
 
@@ -627,7 +627,7 @@ rust_print_struct_def (struct type *type, const char *varstring,
 
   /* Compute properties of TYPE here because, in the enum case, the
      rest of the code ends up looking only at the variant part.  */
-  const char *tagname = TYPE_TAG_NAME (type);
+  const char *tagname = TYPE_NAME (type);
   bool is_tuple_struct = rust_tuple_struct_type_p (type);
   bool is_tuple = rust_tuple_type_p (type);
   bool is_enum = rust_enum_p (type);
@@ -808,11 +808,11 @@ rust_internal_print_type (struct type *type, const char *varstring,
 	int i, len = 0;
 
 	fputs_filtered ("enum ", stream);
-	if (TYPE_TAG_NAME (type) != NULL)
+	if (TYPE_NAME (type) != NULL)
 	  {
-	    fputs_filtered (TYPE_TAG_NAME (type), stream);
+	    fputs_filtered (TYPE_NAME (type), stream);
 	    fputs_filtered (" ", stream);
-	    len = strlen (TYPE_TAG_NAME (type));
+	    len = strlen (TYPE_NAME (type));
 	  }
 	fputs_filtered ("{\n", stream);
 
@@ -823,7 +823,7 @@ rust_internal_print_type (struct type *type, const char *varstring,
 	    QUIT;
 
 	    if (len > 0
-		&& strncmp (name, TYPE_TAG_NAME (type), len) == 0
+		&& strncmp (name, TYPE_NAME (type), len) == 0
 		&& name[len] == ':'
 		&& name[len + 1] == ':')
 	      name += len + 2;
@@ -912,7 +912,6 @@ rust_composite_type (struct type *original,
 
   TYPE_CODE (result) = TYPE_CODE_STRUCT;
   TYPE_NAME (result) = name;
-  TYPE_TAG_NAME (result) = name;
 
   TYPE_NFIELDS (result) = nfields;
   TYPE_FIELDS (result)
@@ -1090,10 +1089,10 @@ rust_evaluate_funcall (struct expression *exp, int *pos, enum noside noside)
        && TYPE_CODE (type) != TYPE_CODE_ENUM)
       || rust_tuple_type_p (type))
     error (_("Method calls only supported on struct or enum types"));
-  if (TYPE_TAG_NAME (type) == NULL)
+  if (TYPE_NAME (type) == NULL)
     error (_("Method call on nameless type"));
 
-  std::string name = std::string (TYPE_TAG_NAME (type)) + "::" + method;
+  std::string name = std::string (TYPE_NAME (type)) + "::" + method;
 
   block = get_selected_block (0);
   sym = lookup_symbol (name.c_str (), block, VAR_DOMAIN, NULL);
@@ -1606,13 +1605,13 @@ rust_evaluate_subexp (struct type *expect_type, struct expression *exp,
 		if (outer_type != NULL)
 		  error(_("Cannot access field %d of variant %s::%s, "
 			  "there are only %d fields"),
-			field_number, TYPE_TAG_NAME (outer_type),
-			rust_last_path_segment (TYPE_TAG_NAME (type)),
+			field_number, TYPE_NAME (outer_type),
+			rust_last_path_segment (TYPE_NAME (type)),
 			nfields);
 		else
 		  error(_("Cannot access field %d of %s, "
 			  "there are only %d fields"),
-			field_number, TYPE_TAG_NAME (type), nfields);
+			field_number, TYPE_NAME (type), nfields);
 	      }
 
 	    /* Tuples are tuple structs too.  */
@@ -1620,13 +1619,13 @@ rust_evaluate_subexp (struct type *expect_type, struct expression *exp,
 	      {
 		if (outer_type != NULL)
 		  error(_("Variant %s::%s is not a tuple variant"),
-			TYPE_TAG_NAME (outer_type),
-			rust_last_path_segment (TYPE_TAG_NAME (type)));
+			TYPE_NAME (outer_type),
+			rust_last_path_segment (TYPE_NAME (type)));
 		else
 		  error(_("Attempting to access anonymous field %d "
 			  "of %s, which is not a tuple, tuple struct, or "
 			  "tuple-like variant"),
-		      field_number, TYPE_TAG_NAME (type));
+		      field_number, TYPE_NAME (type));
 	      }
 
 	    result = value_primitive_field (lhs, 0, field_number, type);
@@ -1668,7 +1667,7 @@ tuple structs, and tuple-like enum variants"));
 	    if (rust_tuple_type_p (type) || rust_tuple_struct_type_p (type))
 		error (_("Attempting to access named field foo of tuple "
 			 "variant %s::%s, which has only anonymous fields"),
-		       TYPE_TAG_NAME (outer_type),
+		       TYPE_NAME (outer_type),
 		       rust_last_path_segment (TYPE_NAME (type)));
 
 	    TRY
@@ -1679,7 +1678,7 @@ tuple structs, and tuple-like enum variants"));
 	    CATCH (except, RETURN_MASK_ERROR)
 	      {
 		error (_("Could not find field %s of struct variant %s::%s"),
-		       field_name, TYPE_TAG_NAME (outer_type),
+		       field_name, TYPE_NAME (outer_type),
 		       rust_last_path_segment (TYPE_NAME (type)));
 	      }
 	    END_CATCH
diff --git a/gdb/stabsread.c b/gdb/stabsread.c
index 0017f18c35..420cdd2742 100644
--- a/gdb/stabsread.c
+++ b/gdb/stabsread.c
@@ -1344,8 +1344,8 @@ define_symbol (CORE_ADDR valu, const char *string, int desc, int type,
       SYMBOL_ACLASS_INDEX (sym) = LOC_TYPEDEF;
       SYMBOL_VALUE (sym) = valu;
       SYMBOL_DOMAIN (sym) = STRUCT_DOMAIN;
-      if (TYPE_TAG_NAME (SYMBOL_TYPE (sym)) == 0)
-	TYPE_TAG_NAME (SYMBOL_TYPE (sym))
+      if (TYPE_NAME (SYMBOL_TYPE (sym)) == 0)
+	TYPE_NAME (SYMBOL_TYPE (sym))
 	  = obconcat (&objfile->objfile_obstack,
 		      SYMBOL_LINKAGE_NAME (sym),
 		      (char *) NULL);
@@ -1702,7 +1702,7 @@ again:
 	   type.  */
 	type = dbx_alloc_type (typenums, objfile);
 	TYPE_CODE (type) = code;
-	TYPE_TAG_NAME (type) = type_name;
+	TYPE_NAME (type) = type_name;
 	INIT_CPLUS_SPECIFIC (type);
 	TYPE_STUB (type) = 1;
 
@@ -1767,7 +1767,6 @@ again:
                copies of a type otherwise.  */
 	    replace_type (type, xtype);
 	    TYPE_NAME (type) = NULL;
-	    TYPE_TAG_NAME (type) = NULL;
 	  }
 	else
 	  {
@@ -3428,9 +3427,9 @@ complain_about_struct_wipeout (struct type *type)
   const char *name = "";
   const char *kind = "";
 
-  if (TYPE_TAG_NAME (type))
+  if (TYPE_NAME (type))
     {
-      name = TYPE_TAG_NAME (type);
+      name = TYPE_NAME (type);
       switch (TYPE_CODE (type))
         {
         case TYPE_CODE_STRUCT: kind = "struct "; break;
@@ -3439,11 +3438,6 @@ complain_about_struct_wipeout (struct type *type)
         default: kind = "";
         }
     }
-  else if (TYPE_NAME (type))
-    {
-      name = TYPE_NAME (type);
-      kind = "";
-    }
   else
     {
       name = "<unknown>";
@@ -4476,7 +4470,7 @@ add_undefined_type_1 (struct type *type)
 static void
 add_undefined_type (struct type *type, int typenums[2])
 {
-  if (TYPE_TAG_NAME (type) == NULL)
+  if (TYPE_NAME (type) == NULL)
     add_undefined_type_noname (type, typenums);
   else
     add_undefined_type_1 (type);
@@ -4561,7 +4555,7 @@ cleanup_undefined_types_1 (void)
 		struct pending *ppt;
 		int i;
 		/* Name of the type, without "struct" or "union".  */
-		const char *type_name = TYPE_TAG_NAME (*type);
+		const char *type_name = TYPE_NAME (*type);
 
 		if (type_name == NULL)
 		  {
diff --git a/gdb/symmisc.c b/gdb/symmisc.c
index 9adde044cd..4d56a3e952 100644
--- a/gdb/symmisc.c
+++ b/gdb/symmisc.c
@@ -540,7 +540,7 @@ print_symbol (struct gdbarch *gdbarch, struct symbol *symbol,
 
   if (SYMBOL_DOMAIN (symbol) == STRUCT_DOMAIN)
     {
-      if (TYPE_TAG_NAME (SYMBOL_TYPE (symbol)))
+      if (TYPE_NAME (SYMBOL_TYPE (symbol)))
 	{
 	  LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth,
 			 &type_print_raw_options);
diff --git a/gdb/target-descriptions.c b/gdb/target-descriptions.c
index 5d34e29a86..ddec6ee5d6 100644
--- a/gdb/target-descriptions.c
+++ b/gdb/target-descriptions.c
@@ -428,7 +428,6 @@ make_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *ttype)
     {
       m_type = arch_composite_type (m_gdbarch, NULL, TYPE_CODE_STRUCT);
       TYPE_NAME (m_type) = xstrdup (e->name.c_str ());
-      TYPE_TAG_NAME (m_type) = TYPE_NAME (m_type);
 
       for (const tdesc_type_field &f : e->fields)
 	{
diff --git a/gdb/testsuite/gdb.base/maint.exp b/gdb/testsuite/gdb.base/maint.exp
index 9322108565..4ec80812a9 100644
--- a/gdb/testsuite/gdb.base/maint.exp
+++ b/gdb/testsuite/gdb.base/maint.exp
@@ -345,7 +345,7 @@ foreach { test_name command } $test_list {
 
 set msg "maint print type"
 gdb_test_multiple "maint print type argc" $msg {
-    -re "type node $hex\r\nname .int. \\($hex\\)\r\ntagname .<NULL>. \\($hex\\)\r\ncode $hex \\(TYPE_CODE_INT\\)\r\nlength \[24\]\r\nobjfile $hex\r\ntarget_type $hex\r\npointer_type $hex\r\nreference_type $hex\r\ntype_chain $hex\r\ninstance_flags $hex\r\nflags\r\nnfields 0 $hex\r\n$gdb_prompt $" {
+    -re "type node $hex\r\nname .int. \\($hex\\)\r\ncode $hex \\(TYPE_CODE_INT\\)\r\nlength \[24\]\r\nobjfile $hex\r\ntarget_type $hex\r\npointer_type $hex\r\nreference_type $hex\r\ntype_chain $hex\r\ninstance_flags $hex\r\nflags\r\nnfields 0 $hex\r\n$gdb_prompt $" {
         pass $msg
     }
 }
diff --git a/gdb/testsuite/gdb.cp/typeid.exp b/gdb/testsuite/gdb.cp/typeid.exp
index 4378dcbb59..1731b78b9d 100644
--- a/gdb/testsuite/gdb.cp/typeid.exp
+++ b/gdb/testsuite/gdb.cp/typeid.exp
@@ -27,7 +27,7 @@ proc do_typeid_tests {started} {
     global hex
 
     # We might see the standard type or gdb's internal type.
-    set type_re "(std::type_info|struct gdb_gnu_v3_type_info)"
+    set type_re "(std::type_info|gdb_gnu_v3_type_info)"
 
 
     foreach simple_var {i cp ccp ca b} {
diff --git a/gdb/testsuite/gdb.dwarf2/member-ptr-forwardref.exp b/gdb/testsuite/gdb.dwarf2/member-ptr-forwardref.exp
index 41eff9237c..31707bbd0c 100644
--- a/gdb/testsuite/gdb.dwarf2/member-ptr-forwardref.exp
+++ b/gdb/testsuite/gdb.dwarf2/member-ptr-forwardref.exp
@@ -38,4 +38,5 @@ gdb_test "show cp-abi" {The currently selected C\+\+ ABI is "gnu-v3".*}
 
 gdb_load ${binfile}
 
+gdb_test_no_output "set language c++"
 gdb_test "ptype c" "type = struct C {\[\r\n \t\]*private:\[\r\n \t\]*int \\(C::\\*fp\\)\\(C \\*( const)?\\);\[\r\n \t\]*}"
diff --git a/gdb/testsuite/gdb.dwarf2/method-ptr.exp b/gdb/testsuite/gdb.dwarf2/method-ptr.exp
index 5a4f05350e..7fe755cb7d 100644
--- a/gdb/testsuite/gdb.dwarf2/method-ptr.exp
+++ b/gdb/testsuite/gdb.dwarf2/method-ptr.exp
@@ -82,5 +82,6 @@ if { [prepare_for_testing "failed to prepare" ${testfile} \
     return -1
 }
 
+gdb_test_no_output "set language c++"
 gdb_test "ptype the_typedef" \
     "type = int \\(S::\\*\\)\\(S \\* const, float\\)"
diff --git a/gdb/testsuite/gdb.xml/tdesc-regs.exp b/gdb/testsuite/gdb.xml/tdesc-regs.exp
index bb7b9be16c..94d4007a89 100644
--- a/gdb/testsuite/gdb.xml/tdesc-regs.exp
+++ b/gdb/testsuite/gdb.xml/tdesc-regs.exp
@@ -179,7 +179,7 @@ gdb_test "ptype \$extrareg" "type = (int|long|long long)"
 gdb_test "ptype \$uintreg" "type = uint32_t"
 gdb_test "ptype \$vecreg" "type = int8_t __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
 gdb_test "ptype \$unionreg" \
-    "type = union {\r\n *v4int8 v4;\r\n *v2int16 v2;\r\n}"
+    "type = union vecint {\r\n *v4int8 v4;\r\n *v2int16 v2;\r\n}"
 gdb_test "ptype \$unionreg.v4" "type = int8_t __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
 gdb_test "ptype \$structreg" \
     "type = struct struct1 {\r\n *v4int8 v4;\r\n *v2int16 v2;\r\n}"
@@ -189,7 +189,7 @@ gdb_test "ptype \$bitfields" \
 gdb_test "ptype \$flags" \
     "type = flag flags {\r\n *bool X @0;\r\n *uint32_t Y @2;\r\n}"
 gdb_test "ptype \$mixed_flags" \
-    "type = flag mixed_flags {\r\n *bool A @0;\r\n *uint32_t B @1-3;\r\n *bool C @4;\r\n *uint32_t D @5;\r\n *uint32_t @6-7;\r\n *enum {yes = 1, no = 0, maybe = 2, so} Z @8-9;\r\n}"
+    "type = flag mixed_flags {\r\n *bool A @0;\r\n *uint32_t B @1-3;\r\n *bool C @4;\r\n *uint32_t D @5;\r\n *uint32_t @6-7;\r\n *enum Z_values {yes = 1, no = 0, maybe = 2, so} Z @8-9;\r\n}"
 # Reggroups should have at least general and the extra foo group
 gdb_test "maintenance print reggroups" \
     " Group\[ \t\]+Type\[ \t\]+\r\n.* general\[ \t\]+user\[ \t\]+\r\n.* foo\[ \t\]+user\[ \t\]+"
diff --git a/gdb/valarith.c b/gdb/valarith.c
index 58e3a09c37..d2dd590064 100644
--- a/gdb/valarith.c
+++ b/gdb/valarith.c
@@ -61,8 +61,6 @@ find_size_for_pointer_math (struct type *ptr_type)
 	  
 	  name = TYPE_NAME (ptr_target);
 	  if (name == NULL)
-	    name = TYPE_TAG_NAME (ptr_target);
-	  if (name == NULL)
 	    error (_("Cannot perform pointer math on incomplete types, "
 		   "try casting to a known type, or void *."));
 	  else
diff --git a/gdb/valops.c b/gdb/valops.c
index 1f655b5187..cb51a2688e 100644
--- a/gdb/valops.c
+++ b/gdb/valops.c
@@ -3243,7 +3243,7 @@ enum_constant_from_type (struct type *type, const char *name)
     }
 
   error (_("no constant named \"%s\" in enum \"%s\""),
-	 name, TYPE_TAG_NAME (type));
+	 name, TYPE_NAME (type));
 }
 
 /* C++: Given an aggregate type CURTYPE, and a member name NAME,
@@ -3581,7 +3581,7 @@ value_namespace_elt (const struct type *curtype,
 
   if (retval == NULL)
     error (_("No symbol \"%s\" in namespace \"%s\"."), 
-	   name, TYPE_TAG_NAME (curtype));
+	   name, TYPE_NAME (curtype));
 
   return retval;
 }
@@ -3597,7 +3597,7 @@ value_maybe_namespace_elt (const struct type *curtype,
 			   const char *name, int want_address,
 			   enum noside noside)
 {
-  const char *namespace_name = TYPE_TAG_NAME (curtype);
+  const char *namespace_name = TYPE_NAME (curtype);
   struct block_symbol sym;
   struct value *result;
 
-- 
2.13.6

^ permalink raw reply	[flat|nested] 16+ messages in thread

* [RFA 2/4] Thread language through c_type_print_args
  2018-04-17 19:51 [RFA 0/4] Remove TYPE_TAG_NAME Tom Tromey
                   ` (2 preceding siblings ...)
  2018-04-17 19:51 ` [RFA 4/4] Remove type_name_no_tag and rename type_name_no_tag_or_error Tom Tromey
@ 2018-04-17 19:51 ` Tom Tromey
  2018-04-18 17:53   ` Tom Tromey
  2018-05-31  1:37   ` Joel Brobecker
  2018-04-18 16:57 ` [RFA 0/4] Remove TYPE_TAG_NAME Keith Seitz
  2018-05-09 15:42 ` Tom Tromey
  5 siblings, 2 replies; 16+ messages in thread
From: Tom Tromey @ 2018-04-17 19:51 UTC (permalink / raw)
  To: gdb-patches; +Cc: Tom Tromey

Currently dwarf2read.c will pass the CU's language to
c_type_print_args -- but this doesn't affect all aspects of type
printing, because some code in c-typeprint.c refers to
current_language.

This patch threads the language through more of the type printing
code, adding an overload to c_type_print.  Some uses of
current_language remain, but now they are only in top-level functions.

ChangeLog
2018-04-17  Tom Tromey  <tom@tromey.com>

	* dwarf2read.c (dwarf2_compute_name): Pass CU's language to
	c_print_type.
	* c-typeprint.c (c_print_type_1): Add "language" parameter.
	(c_print_type): Update.
	(c_print_type): New overload.
	(c_type_print_varspec_prefix, c_type_print_args)
	(c_type_print_varspec_suffix, c_print_type_no_offsets)
	(c_type_print_base_struct_union, c_type_print_base_1)
	(cp_type_print_method_args): Add "language" parameter.
	(c_type_print_base): Update.
	* c-lang.h (c_print_type): Add new overload.
---
 gdb/ChangeLog     |  14 +++++++
 gdb/c-lang.h      |   7 ++++
 gdb/c-typeprint.c | 114 +++++++++++++++++++++++++++++++++++-------------------
 gdb/dwarf2read.c  |   3 +-
 4 files changed, 98 insertions(+), 40 deletions(-)

diff --git a/gdb/c-lang.h b/gdb/c-lang.h
index 18dedcc1fa..a250fb34a6 100644
--- a/gdb/c-lang.h
+++ b/gdb/c-lang.h
@@ -72,6 +72,13 @@ extern void c_print_type (struct type *, const char *,
 			  struct ui_file *, int, int,
 			  const struct type_print_options *);
 
+/* Print a type but allow the precise language to be specified.  */
+
+extern void c_print_type (struct type *, const char *,
+			  struct ui_file *, int, int,
+			  enum language,
+			  const struct type_print_options *);
+
 extern void c_print_typedef (struct type *,
 			     struct symbol *,
 			     struct ui_file *);
diff --git a/gdb/c-typeprint.c b/gdb/c-typeprint.c
index e26687ba25..a53331aefc 100644
--- a/gdb/c-typeprint.c
+++ b/gdb/c-typeprint.c
@@ -52,11 +52,13 @@ enum access_specifier
 
 static void c_type_print_varspec_suffix (struct type *, struct ui_file *, int,
 					 int, int,
+					 enum language,
 					 const struct type_print_options *);
 
 static void c_type_print_varspec_prefix (struct type *,
 					 struct ui_file *,
 					 int, int, int,
+					 enum language,
 					 const struct type_print_options *,
 					 struct print_offset_data *);
 
@@ -66,7 +68,7 @@ static void c_type_print_modifier (struct type *,
 				   int, int);
 
 static void c_type_print_base_1 (struct type *type, struct ui_file *stream,
-				 int show, int level,
+				 int show, int level, enum language language,
 				 const struct type_print_options *flags,
 				 struct print_offset_data *podata);
 \f
@@ -108,6 +110,7 @@ c_print_type_1 (struct type *type,
 		const char *varstring,
 		struct ui_file *stream,
 		int show, int level,
+		enum language language,
 		const struct type_print_options *flags,
 		struct print_offset_data *podata)
 {
@@ -128,7 +131,7 @@ c_print_type_1 (struct type *type,
     }
   else
     {
-      c_type_print_base_1 (type, stream, show, level, flags, podata);
+      c_type_print_base_1 (type, stream, show, level, language, flags, podata);
       code = TYPE_CODE (type);
       if ((varstring != NULL && *varstring != '\0')
 	  /* Need a space if going to print stars or brackets;
@@ -144,7 +147,7 @@ c_print_type_1 (struct type *type,
 	fputs_filtered (" ", stream);
       need_post_space = (varstring != NULL && strcmp (varstring, "") != 0);
       c_type_print_varspec_prefix (type, stream, show, 0, need_post_space,
-				   flags, podata);
+				   language, flags, podata);
     }
 
   if (varstring != NULL)
@@ -158,7 +161,7 @@ c_print_type_1 (struct type *type,
 	  demangled_args = strchr (varstring, '(') != NULL;
 	  c_type_print_varspec_suffix (type, stream, show,
 				       0, demangled_args,
-				       flags);
+				       language, flags);
 	}
     }
 }
@@ -174,7 +177,25 @@ c_print_type (struct type *type,
 {
   struct print_offset_data podata;
 
-  c_print_type_1 (type, varstring, stream, show, level, flags, &podata);
+  c_print_type_1 (type, varstring, stream, show, level,
+		  current_language->la_language, flags, &podata);
+}
+
+
+/* See c-lang.h.  */
+
+void
+c_print_type (struct type *type,
+	      const char *varstring,
+	      struct ui_file *stream,
+	      int show, int level,
+	      enum language language,
+	      const struct type_print_options *flags)
+{
+  struct print_offset_data podata;
+
+  c_print_type_1 (type, varstring, stream, show, level, language, flags,
+		  &podata);
 }
 
 /* Print a typedef using C syntax.  TYPE is the underlying type.
@@ -257,6 +278,7 @@ static void
 cp_type_print_method_args (struct type *mtype, const char *prefix,
 			   const char *varstring, int staticp,
 			   struct ui_file *stream,
+			   enum language language,
 			   const struct type_print_options *flags)
 {
   struct field *args = TYPE_FIELDS (mtype);
@@ -297,7 +319,7 @@ cp_type_print_method_args (struct type *mtype, const char *prefix,
     }
   else if (varargs)
     fprintf_filtered (stream, "...");
-  else if (current_language->la_language == language_cplus)
+  else if (language == language_cplus)
     fprintf_filtered (stream, "void");
 
   fprintf_filtered (stream, ")");
@@ -344,6 +366,7 @@ c_type_print_varspec_prefix (struct type *type,
 			     struct ui_file *stream,
 			     int show, int passed_a_ptr,
 			     int need_post_space,
+			     enum language language,
 			     const struct type_print_options *flags,
 			     struct print_offset_data *podata)
 {
@@ -361,40 +384,46 @@ c_type_print_varspec_prefix (struct type *type,
     {
     case TYPE_CODE_PTR:
       c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
-				   stream, show, 1, 1, flags, podata);
+				   stream, show, 1, 1, language, flags,
+				   podata);
       fprintf_filtered (stream, "*");
       c_type_print_modifier (type, stream, 1, need_post_space);
       break;
 
     case TYPE_CODE_MEMBERPTR:
       c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
-				   stream, show, 0, 0, flags, podata);
+				   stream, show, 0, 0, language, flags,
+				   podata);
       name = type_name_no_tag (TYPE_SELF_TYPE (type));
       if (name)
 	print_name_maybe_canonical (name, flags, stream);
       else
 	c_type_print_base_1 (TYPE_SELF_TYPE (type),
-			     stream, -1, passed_a_ptr, flags, podata);
+			     stream, -1, passed_a_ptr, language, flags,
+			     podata);
       fprintf_filtered (stream, "::*");
       break;
 
     case TYPE_CODE_METHODPTR:
       c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
-				   stream, show, 0, 0, flags, podata);
+				   stream, show, 0, 0, language, flags,
+				   podata);
       fprintf_filtered (stream, "(");
       name = type_name_no_tag (TYPE_SELF_TYPE (type));
       if (name)
 	print_name_maybe_canonical (name, flags, stream);
       else
 	c_type_print_base_1 (TYPE_SELF_TYPE (type),
-			     stream, -1, passed_a_ptr, flags, podata);
+			     stream, -1, passed_a_ptr, language, flags,
+			     podata);
       fprintf_filtered (stream, "::*");
       break;
 
     case TYPE_CODE_REF:
     case TYPE_CODE_RVALUE_REF:
       c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
-				   stream, show, 1, 0, flags, podata);
+				   stream, show, 1, 0, language, flags,
+				   podata);
       fprintf_filtered (stream, TYPE_CODE(type) == TYPE_CODE_REF ? "&" : "&&");
       c_type_print_modifier (type, stream, 1, need_post_space);
       break;
@@ -402,22 +431,24 @@ c_type_print_varspec_prefix (struct type *type,
     case TYPE_CODE_METHOD:
     case TYPE_CODE_FUNC:
       c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
-				   stream, show, 0, 0, flags, podata);
+				   stream, show, 0, 0, language, flags,
+				   podata);
       if (passed_a_ptr)
 	fprintf_filtered (stream, "(");
       break;
 
     case TYPE_CODE_ARRAY:
       c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
-				   stream, show, 0, 0, flags, podata);
+				   stream, show, 0, 0, language, flags,
+				   podata);
       if (passed_a_ptr)
 	fprintf_filtered (stream, "(");
       break;
 
     case TYPE_CODE_TYPEDEF:
       c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
-				   stream, show, passed_a_ptr, 0, flags,
-				   podata);
+				   stream, show, passed_a_ptr, 0,
+				   language, flags, podata);
       break;
 
     case TYPE_CODE_UNDEF:
@@ -556,7 +587,7 @@ c_type_print_args (struct type *type, struct ui_file *stream,
 	  param_type = make_cv_type (0, 0, param_type, NULL);
 	}
 
-      c_print_type (param_type, "", stream, -1, 0, flags);
+      c_print_type (param_type, "", stream, -1, 0, language, flags);
       printed_any = 1;
     }
 
@@ -725,6 +756,7 @@ c_type_print_varspec_suffix (struct type *type,
 			     struct ui_file *stream,
 			     int show, int passed_a_ptr,
 			     int demangled_args,
+			     enum language language,
 			     const struct type_print_options *flags)
 {
   if (type == 0)
@@ -757,26 +789,26 @@ c_type_print_varspec_suffix (struct type *type,
 	fprintf_filtered (stream, (is_vector ? ")))" : "]"));
 
 	c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
-				     show, 0, 0, flags);
+				     show, 0, 0, language, flags);
       }
       break;
 
     case TYPE_CODE_MEMBERPTR:
       c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
-				   show, 0, 0, flags);
+				   show, 0, 0, language, flags);
       break;
 
     case TYPE_CODE_METHODPTR:
       fprintf_filtered (stream, ")");
       c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
-				   show, 0, 0, flags);
+				   show, 0, 0, language, flags);
       break;
 
     case TYPE_CODE_PTR:
     case TYPE_CODE_REF:
     case TYPE_CODE_RVALUE_REF:
       c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
-				   show, 1, 0, flags);
+				   show, 1, 0, language, flags);
       break;
 
     case TYPE_CODE_METHOD:
@@ -784,15 +816,14 @@ c_type_print_varspec_suffix (struct type *type,
       if (passed_a_ptr)
 	fprintf_filtered (stream, ")");
       if (!demangled_args)
-	c_type_print_args (type, stream, 0, current_language->la_language,
-			   flags);
+	c_type_print_args (type, stream, 0, language, flags);
       c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
-				   show, passed_a_ptr, 0, flags);
+				   show, passed_a_ptr, 0, language, flags);
       break;
 
     case TYPE_CODE_TYPEDEF:
       c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
-				   show, passed_a_ptr, 0, flags);
+				   show, passed_a_ptr, 0, language, flags);
       break;
 
     case TYPE_CODE_UNDEF:
@@ -1092,6 +1123,7 @@ c_print_type_no_offsets (struct type *type,
 			 const char *varstring,
 			 struct ui_file *stream,
 			 int show, int level,
+			 enum language language,
 			 struct type_print_options *flags,
 			 struct print_offset_data *podata)
 {
@@ -1100,7 +1132,8 @@ c_print_type_no_offsets (struct type *type,
   /* Temporarily disable print_offsets, because it would mess with
      indentation.  */
   flags->print_offsets = 0;
-  c_print_type_1 (type, varstring, stream, show, level, flags, podata);
+  c_print_type_1 (type, varstring, stream, show, level, language, flags,
+		  podata);
   flags->print_offsets = old_po;
 }
 
@@ -1110,6 +1143,7 @@ c_print_type_no_offsets (struct type *type,
 static void
 c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
 				int show, int level,
+				enum language language,
 				const struct type_print_options *flags,
 				struct print_offset_data *podata)
 {
@@ -1290,7 +1324,7 @@ c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
 	  c_print_type_1 (TYPE_FIELD_TYPE (type, i),
 			  TYPE_FIELD_NAME (type, i),
 			  stream, newshow, level + 4,
-			  &local_flags, &local_podata);
+			  language, &local_flags, &local_podata);
 
 	  if (!is_static && TYPE_FIELD_PACKED (type, i))
 	    {
@@ -1379,7 +1413,7 @@ c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
 		{
 		  c_print_type_no_offsets
 		    (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
-		     "", stream, -1, 0, &local_flags, podata);
+		     "", stream, -1, 0, language, &local_flags, podata);
 
 		  fputs_filtered (" ", stream);
 		}
@@ -1411,7 +1445,8 @@ c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
 						 "",
 						 method_name,
 						 staticp,
-						 stream, &local_flags);
+						 stream, language,
+						 &local_flags);
 		    }
 		  else
 		    fprintf_filtered (stream,
@@ -1465,7 +1500,7 @@ c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
 							flags);
 	      c_print_type_no_offsets (TYPE_NESTED_TYPES_FIELD_TYPE (type, i),
 				       "", stream, show, level + 4,
-				       &semi_local_flags, podata);
+				       language, &semi_local_flags, podata);
 	      fprintf_filtered (stream, ";\n");
 	    }
 	}
@@ -1503,7 +1538,7 @@ c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
 	      c_print_type_no_offsets (target,
 				       TYPE_TYPEDEF_FIELD_NAME (type, i),
 				       stream, show - 1, level + 4,
-				       &semi_local_flags, podata);
+				       language, &semi_local_flags, podata);
 	      fprintf_filtered (stream, ";\n");
 	    }
 	}
@@ -1550,6 +1585,7 @@ c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
 static void
 c_type_print_base_1 (struct type *type, struct ui_file *stream,
 		     int show, int level,
+		     enum language language,
 		     const struct type_print_options *flags,
 		     struct print_offset_data *podata)
 {
@@ -1597,7 +1633,7 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
 	type_print_unknown_return_type (stream);
       else
 	c_type_print_base_1 (TYPE_TARGET_TYPE (type),
-			     stream, show, level, flags, podata);
+			     stream, show, level, language, flags, podata);
       break;
     case TYPE_CODE_ARRAY:
     case TYPE_CODE_PTR:
@@ -1606,13 +1642,13 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
     case TYPE_CODE_RVALUE_REF:
     case TYPE_CODE_METHODPTR:
       c_type_print_base_1 (TYPE_TARGET_TYPE (type),
-			   stream, show, level, flags, podata);
+			   stream, show, level, language, flags, podata);
       break;
 
     case TYPE_CODE_STRUCT:
     case TYPE_CODE_UNION:
-      c_type_print_base_struct_union (type, stream, show, level, flags,
-				      podata);
+      c_type_print_base_struct_union (type, stream, show, level,
+				      language, flags, podata);
       break;
 
     case TYPE_CODE_ENUM:
@@ -1653,8 +1689,7 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
 	     print too much than too little; but conversely not to
 	     print something egregiously outside the current
 	     language's syntax.  */
-	  if (current_language->la_language == language_cplus
-	      && TYPE_TARGET_TYPE (type) != NULL)
+	  if (language == language_cplus && TYPE_TARGET_TYPE (type) != NULL)
 	    {
 	      struct type *underlying = check_typedef (TYPE_TARGET_TYPE (type));
 
@@ -1715,7 +1750,7 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
 		c_print_type_1 (TYPE_FIELD_TYPE (type, i),
 				TYPE_FIELD_NAME (type, i),
 				stream, show, level + 4,
-				&local_flags, podata);
+				language, &local_flags, podata);
 		fprintf_filtered (stream, " @%s",
 				  plongest (TYPE_FIELD_BITPOS (type, i)));
 		if (TYPE_FIELD_BITSIZE (type, i) > 1)
@@ -1784,5 +1819,6 @@ c_type_print_base (struct type *type, struct ui_file *stream,
 {
   struct print_offset_data podata;
 
-  c_type_print_base_1 (type, stream, show, level, flags, &podata);
+  c_type_print_base_1 (type, stream, show, level,
+		       current_language->la_language, flags, &podata);
 }
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 9c9dcee058..8dbe12db02 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -10814,7 +10814,8 @@ dwarf2_compute_name (const char *name,
 
 		  if (child->tag == DW_TAG_template_type_param)
 		    {
-		      c_print_type (type, "", &buf, -1, 0, &type_print_raw_options);
+		      c_print_type (type, "", &buf, -1, 0, cu->language,
+				    &type_print_raw_options);
 		      continue;
 		    }
 
-- 
2.13.6

^ permalink raw reply	[flat|nested] 16+ messages in thread

* [RFA 4/4] Remove type_name_no_tag and rename type_name_no_tag_or_error
  2018-04-17 19:51 [RFA 0/4] Remove TYPE_TAG_NAME Tom Tromey
  2018-04-17 19:51 ` [RFA 1/4] Make c_type_print_varspec_suffix static Tom Tromey
  2018-04-17 19:51 ` [RFA 3/4] Remove TYPE_TAG_NAME Tom Tromey
@ 2018-04-17 19:51 ` Tom Tromey
  2018-05-31  6:22   ` Joel Brobecker
  2018-04-17 19:51 ` [RFA 2/4] Thread language through c_type_print_args Tom Tromey
                   ` (2 subsequent siblings)
  5 siblings, 1 reply; 16+ messages in thread
From: Tom Tromey @ 2018-04-17 19:51 UTC (permalink / raw)
  To: gdb-patches; +Cc: Tom Tromey

type_name_no_tag is just a plain wrapper for TYPE_NAME now, so this
patch removes it.  And, because tag names no longer exist, this
renames type_name_no_tag_or_error to type_name_or_error.

ChangeLog
2018-04-17  Tom Tromey  <tom@tromey.com>

	* valops.c (value_cast_structs, destructor_name_p): Update.
	* symtab.c (gdb_mangle_name): Update.
	* stabsread.c (define_symbol, read_cpp_abbrev, read_baseclasses):
	Update.
	* p-valprint.c (pascal_object_is_vtbl_ptr_type)
	(pascal_object_print_value_fields, pascal_object_print_value):
	Update.
	* p-typeprint.c (pascal_type_print_derivation_info): Update.
	* linespec.c (find_methods): Update.
	* gdbtypes.h (type_name_no_tag): Remove.
	(type_name_or_error): Rename from type_name_no_tag_or_error.
	* gdbtypes.c (type_name_no_tag): Remove.
	(type_name_or_error): Rename from type_name_no_tag_or_error.
	(lookup_struct_elt_type, check_typedef): Update.
	* expprint.c (print_subexp_standard): Update.
	* dwarf2read.c (dwarf2_add_field, load_partial_dies): Update.
	* d-namespace.c (d_lookup_nested_symbol): Update.
	* cp-valprint.c (cp_is_vtbl_ptr_type, cp_print_value_fields)
	(cp_print_class_member): Update.
	* cp-namespace.c (cp_lookup_nested_symbol): Update.
	* completer.c (add_struct_fields): Update.
	* c-typeprint.c (cp_type_print_derivation_info)
	(c_type_print_varspec_prefix, c_type_print_base_struct_union):
	Update.
	* ada-lang.c (parse_old_style_renaming, xget_renaming_scope)
	(ada_prefer_type, ada_is_exception_sym): Update.
---
 gdb/ChangeLog      | 29 +++++++++++++++++++++++++++++
 gdb/ada-lang.c     | 10 +++++-----
 gdb/c-typeprint.c  | 11 +++++------
 gdb/completer.c    |  2 +-
 gdb/cp-namespace.c |  6 +++---
 gdb/cp-valprint.c  |  6 +++---
 gdb/d-namespace.c  |  2 +-
 gdb/dwarf2read.c   |  4 ++--
 gdb/expprint.c     |  2 +-
 gdb/gdbtypes.c     | 25 ++++++++-----------------
 gdb/gdbtypes.h     |  4 +---
 gdb/linespec.c     |  2 +-
 gdb/p-typeprint.c  |  2 +-
 gdb/p-valprint.c   |  6 +++---
 gdb/stabsread.c    |  8 ++++----
 gdb/symtab.c       |  2 +-
 gdb/valops.c       |  8 ++++----
 17 files changed, 73 insertions(+), 56 deletions(-)

diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index 41235def3e..ce342fd684 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -4399,7 +4399,7 @@ parse_old_style_renaming (struct type *type,
       || TYPE_NFIELDS (type) != 1)
     return ADA_NOT_RENAMING;
 
-  name = type_name_no_tag (type);
+  name = TYPE_NAME (type);
   if (name == NULL)
     return ADA_NOT_RENAMING;
   
@@ -5190,7 +5190,7 @@ xget_renaming_scope (struct type *renaming_type)
      So, to extract the scope, we search for the "___XR" extension,
      and then backtrack until we find the first "__".  */
 
-  const char *name = type_name_no_tag (renaming_type);
+  const char *name = TYPE_NAME (renaming_type);
   const char *suffix = strstr (name, "___XR");
   const char *last;
   int scope_len;
@@ -8126,8 +8126,8 @@ ada_prefer_type (struct type *type0, struct type *type1)
     return 1;
   else
     {
-      const char *type0_name = type_name_no_tag (type0);
-      const char *type1_name = type_name_no_tag (type1);
+      const char *type0_name = TYPE_NAME (type0);
+      const char *type1_name = TYPE_NAME (type1);
 
       if (type0_name != NULL && strstr (type0_name, "___XR") != NULL
 	  && (type1_name == NULL || strstr (type1_name, "___XR") == NULL))
@@ -13517,7 +13517,7 @@ catch_assert_command (const char *arg_entry, int from_tty,
 static int
 ada_is_exception_sym (struct symbol *sym)
 {
-  const char *type_name = type_name_no_tag (SYMBOL_TYPE (sym));
+  const char *type_name = TYPE_NAME (SYMBOL_TYPE (sym));
 
   return (SYMBOL_CLASS (sym) != LOC_TYPEDEF
           && SYMBOL_CLASS (sym) != LOC_BLOCK
diff --git a/gdb/c-typeprint.c b/gdb/c-typeprint.c
index 846727f298..5e5cdd98fd 100644
--- a/gdb/c-typeprint.c
+++ b/gdb/c-typeprint.c
@@ -260,7 +260,7 @@ cp_type_print_derivation_info (struct ui_file *stream,
 			? "public" : (TYPE_FIELD_PROTECTED (type, i)
 				      ? "protected" : "private"),
 			BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
-      name = type_name_no_tag (TYPE_BASECLASS (type, i));
+      name = TYPE_NAME (TYPE_BASECLASS (type, i));
       if (name)
 	print_name_maybe_canonical (name, flags, stream);
       else
@@ -392,9 +392,8 @@ c_type_print_varspec_prefix (struct type *type,
 
     case TYPE_CODE_MEMBERPTR:
       c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
-				   stream, show, 0, 0, language, flags,
-				   podata);
-      name = type_name_no_tag (TYPE_SELF_TYPE (type));
+				   stream, show, 0, 0, language, flags, podata);
+      name = TYPE_NAME (TYPE_SELF_TYPE (type));
       if (name)
 	print_name_maybe_canonical (name, flags, stream);
       else
@@ -409,7 +408,7 @@ c_type_print_varspec_prefix (struct type *type,
 				   stream, show, 0, 0, language, flags,
 				   podata);
       fprintf_filtered (stream, "(");
-      name = type_name_no_tag (TYPE_SELF_TYPE (type));
+      name = TYPE_NAME (TYPE_SELF_TYPE (type));
       if (name)
 	print_name_maybe_canonical (name, flags, stream);
       else
@@ -1365,7 +1364,7 @@ c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
 	  struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
 	  int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
 	  const char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
-	  const char *name = type_name_no_tag (type);
+	  const char *name = TYPE_NAME (type);
 	  int is_constructor = name && strcmp (method_name,
 					       name) == 0;
 
diff --git a/gdb/completer.c b/gdb/completer.c
index 769dcf0eb6..3e87ed454c 100644
--- a/gdb/completer.c
+++ b/gdb/completer.c
@@ -999,7 +999,7 @@ add_struct_fields (struct type *type, completion_list &output,
 	{
 	  if (!computed_type_name)
 	    {
-	      type_name = type_name_no_tag (type);
+	      type_name = TYPE_NAME (type);
 	      computed_type_name = 1;
 	    }
 	  /* Omit constructors from the completion list.  */
diff --git a/gdb/cp-namespace.c b/gdb/cp-namespace.c
index 185607e4eb..c1d7a8db7d 100644
--- a/gdb/cp-namespace.c
+++ b/gdb/cp-namespace.c
@@ -915,7 +915,7 @@ cp_lookup_nested_symbol (struct type *parent_type,
 			 const struct block *block,
 			 const domain_enum domain)
 {
-  /* type_name_no_tag_or_error provides better error reporting using the
+  /* type_name_or_error provides better error reporting using the
      original type.  */
   struct type *saved_parent_type = parent_type;
 
@@ -923,7 +923,7 @@ cp_lookup_nested_symbol (struct type *parent_type,
 
   if (symbol_lookup_debug)
     {
-      const char *type_name = type_name_no_tag (saved_parent_type);
+      const char *type_name = TYPE_NAME (saved_parent_type);
 
       fprintf_unfiltered (gdb_stdlog,
 			  "cp_lookup_nested_symbol (%s, %s, %s, %s)\n",
@@ -944,7 +944,7 @@ cp_lookup_nested_symbol (struct type *parent_type,
     case TYPE_CODE_MODULE:
       {
 	int size;
-	const char *parent_name = type_name_no_tag_or_error (saved_parent_type);
+	const char *parent_name = type_name_or_error (saved_parent_type);
 	struct block_symbol sym;
 	char *concatenated_name;
 	int is_in_anonymous;
diff --git a/gdb/cp-valprint.c b/gdb/cp-valprint.c
index e019a60791..f67eaed5b7 100644
--- a/gdb/cp-valprint.c
+++ b/gdb/cp-valprint.c
@@ -95,7 +95,7 @@ extern const char vtbl_ptr_name[] = "__vtbl_ptr_type";
 int
 cp_is_vtbl_ptr_type (struct type *type)
 {
-  const char *type_name = type_name_no_tag (type);
+  const char *type_name = TYPE_NAME (type);
 
   return (type_name != NULL && !strcmp (type_name, vtbl_ptr_name));
 }
@@ -243,7 +243,7 @@ cp_print_value_fields (struct type *type, struct type *real_type,
 		  fprintf_filtered (stream, "\n");
 		  print_spaces_filtered (2 + 2 * recurse, stream);
 		  fputs_filtered ("members of ", stream);
-		  fputs_filtered (type_name_no_tag (type), stream);
+		  fputs_filtered (TYPE_NAME (type), stream);
 		  fputs_filtered (": ", stream);
 		}
 	    }
@@ -787,7 +787,7 @@ cp_print_class_member (const gdb_byte *valaddr, struct type *type,
       const char *name;
 
       fputs_filtered (prefix, stream);
-      name = type_name_no_tag (self_type);
+      name = TYPE_NAME (self_type);
       if (name)
 	fputs_filtered (name, stream);
       else
diff --git a/gdb/d-namespace.c b/gdb/d-namespace.c
index f786b55762..6e9ea776a5 100644
--- a/gdb/d-namespace.c
+++ b/gdb/d-namespace.c
@@ -318,7 +318,7 @@ d_lookup_nested_symbol (struct type *parent_type,
     case TYPE_CODE_MODULE:
 	{
 	  int size;
-	  const char *parent_name = type_name_no_tag_or_error (saved_parent_type);
+	  const char *parent_name = type_name_or_error (saved_parent_type);
 	  struct block_symbol sym
 	    = d_lookup_symbol_in_module (parent_name, nested_name,
 					 block, VAR_DOMAIN, 0);
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 78c36887ee..1b18165f7e 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -15070,7 +15070,7 @@ dwarf2_add_field (struct field_info *fip, struct die_info *die,
 	SET_FIELD_BITPOS (*fp, offset * bits_per_byte);
       FIELD_BITSIZE (*fp) = 0;
       FIELD_TYPE (*fp) = die_type (die, cu);
-      FIELD_NAME (*fp) = type_name_no_tag (fp->type);
+      FIELD_NAME (*fp) = TYPE_NAME (fp->type);
     }
   else if (die->tag == DW_TAG_variant_part)
     {
@@ -18175,7 +18175,7 @@ load_partial_dies (const struct die_reader_specs *reader,
 
       /* The exception for DW_TAG_typedef with has_children above is
 	 a workaround of GCC PR debug/47510.  In the case of this complaint
-	 type_name_no_tag_or_error will error on such types later.
+	 type_name_or_error will error on such types later.
 
 	 GDB skipped children of DW_TAG_typedef by the shortcut above and then
 	 it could not find the child DIEs referenced later, this is checked
diff --git a/gdb/expprint.c b/gdb/expprint.c
index c906904599..7c9c5b6509 100644
--- a/gdb/expprint.c
+++ b/gdb/expprint.c
@@ -86,7 +86,7 @@ print_subexp_standard (struct expression *exp, int *pos,
     case OP_SCOPE:
       myprec = PREC_PREFIX;
       assoc = 0;
-      fputs_filtered (type_name_no_tag (exp->elts[pc + 1].type), stream);
+      fputs_filtered (TYPE_NAME (exp->elts[pc + 1].type), stream);
       fputs_filtered ("::", stream);
       nargs = longest_to_int (exp->elts[pc + 2].longconst);
       (*pos) += 4 + BYTES_TO_EXP_ELEM (nargs + 1);
diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c
index b3a388656e..15ebb97eb9 100644
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -1463,16 +1463,7 @@ smash_to_method_type (struct type *type, struct type *self_type,
   TYPE_LENGTH (type) = 1;	/* In practice, this is never needed.  */
 }
 
-/* Return a typename for a struct/union/enum type without "struct ",
-   "union ", or "enum ".  If the type has a NULL name, return NULL.  */
-
-const char *
-type_name_no_tag (const struct type *type)
-{
-  return TYPE_NAME (type);
-}
-
-/* A wrapper of type_name_no_tag which calls error if the type is anonymous.
+/* A wrapper of TYPE_NAME which calls error if the type is anonymous.
    Since GCC PR debug/47510 DWARF provides associated information to detect the
    anonymous class linkage name from its typedef.
 
@@ -1480,7 +1471,7 @@ type_name_no_tag (const struct type *type)
    apply it itself.  */
 
 const char *
-type_name_no_tag_or_error (struct type *type)
+type_name_or_error (struct type *type)
 {
   struct type *saved_type = type;
   const char *name;
@@ -1488,11 +1479,11 @@ type_name_no_tag_or_error (struct type *type)
 
   type = check_typedef (type);
 
-  name = type_name_no_tag (type);
+  name = TYPE_NAME (type);
   if (name != NULL)
     return name;
 
-  name = type_name_no_tag (saved_type);
+  name = TYPE_NAME (saved_type);
   objfile = TYPE_OBJFILE (saved_type);
   error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"),
 	 name ? name : "<anonymous>",
@@ -1686,7 +1677,7 @@ lookup_struct_elt_type (struct type *type, const char *name, int noerr)
   {
     char *type_name;
 
-    type_name = type_name_no_tag (type);
+    type_name = TYPE_NAME (type);
     if (type_name != NULL && strcmp (type_name, name) == 0)
       return type;
   }
@@ -2438,7 +2429,7 @@ check_typedef (struct type *type)
 	  if (currently_reading_symtab)
 	    return make_qualified_type (type, instance_flags, NULL);
 
-	  name = type_name_no_tag (type);
+	  name = TYPE_NAME (type);
 	  /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or
 	     VAR_DOMAIN as appropriate?  */
 	  if (name == NULL)
@@ -2491,7 +2482,7 @@ check_typedef (struct type *type)
       && opaque_type_resolution 
       && !currently_reading_symtab)
     {
-      const char *name = type_name_no_tag (type);
+      const char *name = TYPE_NAME (type);
       struct type *newtype;
 
       if (name == NULL)
@@ -2525,7 +2516,7 @@ check_typedef (struct type *type)
      types.  */
   else if (TYPE_STUB (type) && !currently_reading_symtab)
     {
-      const char *name = type_name_no_tag (type);
+      const char *name = TYPE_NAME (type);
       /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or VAR_DOMAIN
          as appropriate?  */
       struct symbol *sym;
diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h
index 70dac75855..7247bb6481 100644
--- a/gdb/gdbtypes.h
+++ b/gdb/gdbtypes.h
@@ -1835,9 +1835,7 @@ extern void smash_to_methodptr_type (struct type *, struct type *);
 
 extern struct type *allocate_stub_method (struct type *);
 
-extern const char *type_name_no_tag (const struct type *);
-
-extern const char *type_name_no_tag_or_error (struct type *type);
+extern const char *type_name_or_error (struct type *type);
 
 extern struct type *lookup_struct_elt_type (struct type *, const char *, int);
 
diff --git a/gdb/linespec.c b/gdb/linespec.c
index 7ef8012ab5..e65a0462f1 100644
--- a/gdb/linespec.c
+++ b/gdb/linespec.c
@@ -1211,7 +1211,7 @@ find_methods (struct type *t, enum language t_lang, const char *name,
 	      std::vector<struct type *> *superclasses)
 {
   int ibase;
-  const char *class_name = type_name_no_tag (t);
+  const char *class_name = TYPE_NAME (t);
 
   /* Ignore this class if it doesn't have a name.  This is ugly, but
      unless we figure out how to get the physname without the name of
diff --git a/gdb/p-typeprint.c b/gdb/p-typeprint.c
index f82a2bc981..349bbd6aa4 100644
--- a/gdb/p-typeprint.c
+++ b/gdb/p-typeprint.c
@@ -139,7 +139,7 @@ pascal_type_print_derivation_info (struct ui_file *stream, struct type *type)
       fprintf_filtered (stream, "%s%s ",
 			BASETYPE_VIA_PUBLIC (type, i) ? "public" : "private",
 			BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
-      name = type_name_no_tag (TYPE_BASECLASS (type, i));
+      name = TYPE_NAME (TYPE_BASECLASS (type, i));
       fprintf_filtered (stream, "%s", name ? name : "(null)");
     }
   if (i > 0)
diff --git a/gdb/p-valprint.c b/gdb/p-valprint.c
index 933dbfb6c4..766ccc604b 100644
--- a/gdb/p-valprint.c
+++ b/gdb/p-valprint.c
@@ -489,7 +489,7 @@ const char pascal_vtbl_ptr_name[] =
 int
 pascal_object_is_vtbl_ptr_type (struct type *type)
 {
-  const char *type_name = type_name_no_tag (type);
+  const char *type_name = TYPE_NAME (type);
 
   return (type_name != NULL
 	  && strcmp (type_name, pascal_vtbl_ptr_name) == 0);
@@ -587,7 +587,7 @@ pascal_object_print_value_fields (struct type *type, const gdb_byte *valaddr,
 		  fprintf_filtered (stream, "\n");
 		  print_spaces_filtered (2 + 2 * recurse, stream);
 		  fputs_filtered ("members of ", stream);
-		  fputs_filtered (type_name_no_tag (type), stream);
+		  fputs_filtered (TYPE_NAME (type), stream);
 		  fputs_filtered (": ", stream);
 		}
 	    }
@@ -729,7 +729,7 @@ pascal_object_print_value (struct type *type, const gdb_byte *valaddr,
     {
       LONGEST boffset = 0;
       struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
-      const char *basename = type_name_no_tag (baseclass);
+      const char *basename = TYPE_NAME (baseclass);
       const gdb_byte *base_valaddr = NULL;
       LONGEST thisoffset;
       int skip = 0;
diff --git a/gdb/stabsread.c b/gdb/stabsread.c
index 420cdd2742..65812e6b35 100644
--- a/gdb/stabsread.c
+++ b/gdb/stabsread.c
@@ -1246,7 +1246,7 @@ define_symbol (CORE_ADDR valu, const char *string, int desc, int type,
 	    for (j = TYPE_N_BASECLASSES (SYMBOL_TYPE (sym)) - 1; j >= 0; j--)
 	      if (TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym), j) == 0)
 		TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym), j) =
-		  type_name_no_tag (TYPE_BASECLASS (SYMBOL_TYPE (sym), j));
+		  TYPE_NAME (TYPE_BASECLASS (SYMBOL_TYPE (sym), j));
 	  }
 
       if (TYPE_NAME (SYMBOL_TYPE (sym)) == NULL)
@@ -2792,7 +2792,7 @@ read_cpp_abbrev (struct field_info *fip, const char **pp, struct type *type,
       switch (cpp_abbrev)
 	{
 	case 'f':		/* $vf -- a virtual function table pointer */
-	  name = type_name_no_tag (context);
+	  name = TYPE_NAME (context);
 	  if (name == NULL)
 	    {
 	      name = "";
@@ -2802,7 +2802,7 @@ read_cpp_abbrev (struct field_info *fip, const char **pp, struct type *type,
 	  break;
 
 	case 'b':		/* $vb -- a virtual bsomethingorother */
-	  name = type_name_no_tag (context);
+	  name = TYPE_NAME (context);
 	  if (name == NULL)
 	    {
 	      complaint (&symfile_complaints,
@@ -3209,7 +3209,7 @@ read_baseclasses (struct field_info *fip, const char **pp, struct type *type,
          field's name.  */
 
       newobj->field.type = read_type (pp, objfile);
-      newobj->field.name = type_name_no_tag (newobj->field.type);
+      newobj->field.name = TYPE_NAME (newobj->field.type);
 
       /* Skip trailing ';' and bump count of number of fields seen.  */
       if (**pp == ';')
diff --git a/gdb/symtab.c b/gdb/symtab.c
index c1ead701ec..4fc5f3e755 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -528,7 +528,7 @@ gdb_mangle_name (struct type *type, int method_id, int signature_id)
   struct fn_field *method = &f[signature_id];
   const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id);
   const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id);
-  const char *newname = type_name_no_tag (type);
+  const char *newname = TYPE_NAME (type);
 
   /* Does the form of physname indicate that it is the full mangled name
      of a constructor (not just the args)?  */
diff --git a/gdb/valops.c b/gdb/valops.c
index cb51a2688e..43fad60d0d 100644
--- a/gdb/valops.c
+++ b/gdb/valops.c
@@ -244,7 +244,7 @@ value_cast_structs (struct type *type, struct value *v2)
      offset the pointer rather than just change its type.  */
   if (TYPE_NAME (t1) != NULL)
     {
-      v = search_struct_field (type_name_no_tag (t1),
+      v = search_struct_field (TYPE_NAME (t1),
 			       v2, t2, 1);
       if (v)
 	return v;
@@ -273,7 +273,7 @@ value_cast_structs (struct type *type, struct value *v2)
 	      && !strcmp (TYPE_NAME (real_type), TYPE_NAME (t1)))
 	    return v;
 
-	  v = search_struct_field (type_name_no_tag (t2), v, real_type, 1);
+	  v = search_struct_field (TYPE_NAME (t2), v, real_type, 1);
 	  if (v)
 	    return v;
 	}
@@ -281,7 +281,7 @@ value_cast_structs (struct type *type, struct value *v2)
       /* Try downcasting using information from the destination type
 	 T2.  This wouldn't work properly for classes with virtual
 	 bases, but those were handled above.  */
-      v = search_struct_field (type_name_no_tag (t2),
+      v = search_struct_field (TYPE_NAME (t2),
 			       value_zero (t1, not_lval), t1, 1);
       if (v)
 	{
@@ -3193,7 +3193,7 @@ destructor_name_p (const char *name, struct type *type)
 {
   if (name[0] == '~')
     {
-      const char *dname = type_name_no_tag_or_error (type);
+      const char *dname = type_name_or_error (type);
       const char *cp = strchr (dname, '<');
       unsigned int len;
 
-- 
2.13.6

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 3/4] Remove TYPE_TAG_NAME
  2018-04-17 19:51 ` [RFA 3/4] Remove TYPE_TAG_NAME Tom Tromey
@ 2018-04-18 16:57   ` Keith Seitz
  2018-04-18 17:57     ` Tom Tromey
  2018-05-31  2:35   ` Joel Brobecker
  1 sibling, 1 reply; 16+ messages in thread
From: Keith Seitz @ 2018-04-18 16:57 UTC (permalink / raw)
  To: Tom Tromey, gdb-patches

On 04/17/2018 12:51 PM, Tom Tromey wrote:
> ChangeLog
> 2018-04-17  Tom Tromey  <tom@tromey.com>
> 
> 	* valops.c (enum_constant_from_type, value_namespace_elt)
> 	(value_maybe_namespace_elt): Update.
> 	* valarith.c (find_size_for_pointer_math): Update.
> 	* target-descriptions.c (make_gdb_type): Update.
> 	* symmisc.c (print_symbol): Update.
> 	* stabsread.c (define_symbol, read_type)
> 	(complain_about_struct_wipeout, add_undefined_type)
> 	(cleanup_undefined_types_1): Update.
> 	* rust-lang.c (rust_tuple_type_p, rust_slice_type_p)
> 	(rust_range_type_p, val_print_struct, rust_print_struct_def)
> 	(rust_internal_print_type, rust_composite_type)
> 	(rust_evaluate_funcall, rust_evaluate_subexp): Update.
> 	* python/py-type.c (typy_get_tag): Update.
> 	* p-typeprint.c (pascal_type_print_base): Update.
> 	* mdebugread.c (parse_symbol, parse_type): Update.
> 	* m2-typeprint.c (m2_long_set, m2_record_fields, m2_enum):
> 	Update.
> 	* guile/scm-type.c (gdbscm_type_tag): Update.
> 	* go-lang.c (sixg_string_p): Update.
> 	* gnu-v3-abi.c (build_gdb_vtable_type, build_std_type_info_type):
> 	Update.
> 	* gdbtypes.h (struct main_type) <tag_name>: Remove.
> 	(TYPE_TAG_NAME): Remove.
> 	* gdbtypes.c (type_name_no_tag): Simplify.
> 	(check_typedef, check_types_equal, recursive_dump_type)
> 	(copy_type_recursive, arch_composite_type): Update.
> 	* f-typeprint.c (f_type_print_base): Update.  Print "Type" prefix
> 	in summary mode when needed.
> 	* eval.c (evaluate_funcall): Update.
> 	* dwarf2read.c (fixup_go_packaging, read_structure_type)
> 	(process_structure_scope, read_enumeration_type)
> 	(read_namespace_type, read_module_type, determine_prefix): Update.
> 	* cp-support.c (inspect_type): Update.
> 	* coffread.c (process_coff_symbol, decode_base_type): Update.
> 	* c-varobj.c (c_is_path_expr_parent): Update.
> 	* c-typeprint.c (c_type_print_base_struct_union): Update.
> 	(c_type_print_base_1): Update.  Print struct/class/union/enum in
> 	summary when using C language.
> 	* ax-gdb.c (gen_struct_ref, gen_namespace_elt)
> 	(gen_maybe_namespace_elt): Update.
> 	* ada-lang.c (ada_type_name): Simplify.
> 	(empty_record, ada_template_to_fixed_record_type_1)
> 	(template_to_static_fixed_type)
> 	(to_record_with_fixed_variant_part, ada_check_typedef): Update.
> 
> testsuite/ChangeLog
> 2018-04-17  Tom Tromey  <tom@tromey.com>
> 
> 	* gdb.xml/tdesc-regs.exp (load_description): Update expected
> 	results.
> 	* gdb.dwarf2/method-ptr.exp: Set language to C++.
> 	* gdb.dwarf2/member-ptr-forwardref.exp: Set language to C++.
> 	* gdb.cp/typeid.exp (do_typeid_tests): Update type_re.
> 	* gdb.base/maint.exp (maint_pass_if): Update.

Oh, ChangeLogs... Once again I wonder if "update all callers" would have saved you quite a bit of busywork?

> diff --git a/gdb/c-typeprint.c b/gdb/c-typeprint.c
> index a53331aefc..846727f298 100644
> --- a/gdb/c-typeprint.c
> +++ b/gdb/c-typeprint.c
> @@ -1602,15 +1602,31 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
>  
>    /* When SHOW is zero or less, and there is a valid type name, then
>       always just print the type name directly from the type.  */
> -  /* If we have "typedef struct foo {. . .} bar;" do we want to print
> -     it as "struct foo" or as "bar"?  Pick the latter, because C++
> -     folk tend to expect things like "class5 *foo" rather than "struct
> -     class5 *foo".  */
>  
>    if (show <= 0
>        && TYPE_NAME (type) != NULL)
>      {
>        c_type_print_modifier (type, stream, 0, 1);
> +
> +      /* If we have "typedef struct foo {. . .} bar;" do we want to
> +	 print it as "struct foo" or as "bar"?  Pick the latter for
> +	 C++, because C++ folk tend to expect things like "class5
> +	 *foo" rather than "struct class5 *foo".  */
> +      if (language == language_c || language == language_minimal)
> +	{
> +	  if (TYPE_CODE (type) == TYPE_CODE_UNION)
> +	    fprintf_filtered (stream, "union ");
> +	  else if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
> +	    {
> +	      if (TYPE_DECLARED_CLASS (type))
> +		fprintf_filtered (stream, "class ");
> +	      else
> +		fprintf_filtered (stream, "struct ");
> +	    }
> +	  else if (TYPE_CODE (type) == TYPE_CODE_ENUM)
> +	    fprintf_filtered (stream, "enum ");
> +	}
> +
>        print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
>        return;
>      }

I'm almost afraid to ask, but why was language_minimal necessary here? A small comment might be appropriate?
[I think I can already guess the heinous reason...] Do you know if there is a test case that specifically covers this block with language_minimal?

> diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h
> index 552a2a2a16..70dac75855 100644
> --- a/gdb/gdbtypes.h
> +++ b/gdb/gdbtypes.h
> @@ -721,26 +721,12 @@ struct main_type
>  
>    /* * Name of this type, or NULL if none.
>  
> -     This is used for printing only, except by poorly designed C++
> -     code.  For looking up a name, look for a symbol in the
> -     VAR_DOMAIN.  This is generally allocated in the objfile's
> -     obstack.  However coffread.c uses malloc.  */
> +     This is used for printing only.  For looking up a name, look for
> +     a symbol in the VAR_DOMAIN.  This is generally allocated in the
> +     objfile's obstack.  However coffread.c uses malloc.  */

Good riddance! I never did understand the "except by poorly designed C++ code" comment.

> diff --git a/gdb/cp-support.c b/gdb/cp-support.c
> index dde417be80..c16b67171f 100644
> --- a/gdb/cp-support.c
> +++ b/gdb/cp-support.c
> @@ -199,7 +199,7 @@ inspect_type (struct demangle_parse_info *info,
>  	      && strcmp (TYPE_NAME (type), name) == 0)
>  	    return 0;
>  
> -	  is_anon = (TYPE_TAG_NAME (type) == NULL
> +	  is_anon = (TYPE_NAME (type) == NULL
>  		     && (TYPE_CODE (type) == TYPE_CODE_ENUM
>  			 || TYPE_CODE (type) == TYPE_CODE_STRUCT
>  			 || TYPE_CODE (type) == TYPE_CODE_UNION));
> diff --git a/gdb/guile/scm-type.c b/gdb/guile/scm-type.c
> index ce67695b76..949e0dca82 100644
> --- a/gdb/guile/scm-type.c
> +++ b/gdb/guile/scm-type.c
> @@ -576,10 +576,16 @@ gdbscm_type_tag (SCM self)
>    type_smob *t_smob
>      = tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
>    struct type *type = t_smob->type;
> +  const char *tagname = nullptr;
>  
> -  if (!TYPE_TAG_NAME (type))
> +  if (TYPE_CODE (type) == TYPE_CODE_STRUCT
> +      || TYPE_CODE (type) == TYPE_CODE_UNION
> +      || TYPE_CODE (type) == TYPE_CODE_ENUM)
> +    tagname = TYPE_NAME (type);
> +
> +  if (tagname == nullptr)
>      return SCM_BOOL_F;
> -  return gdbscm_scm_from_c_string (TYPE_TAG_NAME (type));
> +  return gdbscm_scm_from_c_string (tagname);
>  }
>  
>  /* (type-name <gdb:type>) -> string
> diff --git a/gdb/python/py-type.c b/gdb/python/py-type.c
> index 8a948eeaa6..6cbb1b663d 100644
> --- a/gdb/python/py-type.c
> +++ b/gdb/python/py-type.c
> @@ -416,10 +416,16 @@ static PyObject *
>  typy_get_tag (PyObject *self, void *closure)
>  {
>    struct type *type = ((type_object *) self)->type;
> +  const char *tagname = nullptr;
>  
> -  if (!TYPE_TAG_NAME (type))
> +  if (TYPE_CODE (type) == TYPE_CODE_STRUCT
> +      || TYPE_CODE (type) == TYPE_CODE_UNION
> +      || TYPE_CODE (type) == TYPE_CODE_ENUM)
> +    tagname = TYPE_NAME (type);
> +
> +  if (tagname == nullptr)
>      Py_RETURN_NONE;
> -  return PyString_FromString (TYPE_TAG_NAME (type));
> +  return PyString_FromString (tagname);
>  }
>  
>  /* Return the type, stripped of typedefs. */

The above three code snippets suggest the introduction of a type_tag_name (struct type *) convenience function might be justified, but I am not going to request any such change.

> diff --git a/gdb/testsuite/gdb.xml/tdesc-regs.exp b/gdb/testsuite/gdb.xml/tdesc-regs.exp
> index bb7b9be16c..94d4007a89 100644
> --- a/gdb/testsuite/gdb.xml/tdesc-regs.exp
> +++ b/gdb/testsuite/gdb.xml/tdesc-regs.exp
> @@ -179,7 +179,7 @@ gdb_test "ptype \$extrareg" "type = (int|long|long long)"
>  gdb_test "ptype \$uintreg" "type = uint32_t"
>  gdb_test "ptype \$vecreg" "type = int8_t __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
>  gdb_test "ptype \$unionreg" \
> -    "type = union {\r\n *v4int8 v4;\r\n *v2int16 v2;\r\n}"
> +    "type = union vecint {\r\n *v4int8 v4;\r\n *v2int16 v2;\r\n}"
>  gdb_test "ptype \$unionreg.v4" "type = int8_t __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
>  gdb_test "ptype \$structreg" \
>      "type = struct struct1 {\r\n *v4int8 v4;\r\n *v2int16 v2;\r\n}"

<rhetorical>Was the tag name never printed until now?</rhetorical> Wow!

> @@ -189,7 +189,7 @@ gdb_test "ptype \$bitfields" \
>  gdb_test "ptype \$flags" \
>      "type = flag flags {\r\n *bool X @0;\r\n *uint32_t Y @2;\r\n}"
>  gdb_test "ptype \$mixed_flags" \
> -    "type = flag mixed_flags {\r\n *bool A @0;\r\n *uint32_t B @1-3;\r\n *bool C @4;\r\n *uint32_t D @5;\r\n *uint32_t @6-7;\r\n *enum {yes = 1, no = 0, maybe = 2, so} Z @8-9;\r\n}"
> +    "type = flag mixed_flags {\r\n *bool A @0;\r\n *uint32_t B @1-3;\r\n *bool C @4;\r\n *uint32_t D @5;\r\n *uint32_t @6-7;\r\n *enum Z_values {yes = 1, no = 0, maybe = 2, so} Z @8-9;\r\n}"
>  # Reggroups should have at least general and the extra foo group
>  gdb_test "maintenance print reggroups" \
>      " Group\[ \t\]+Type\[ \t\]+\r\n.* general\[ \t\]+user\[ \t\]+\r\n.* foo\[ \t\]+user\[ \t\]+"

Warning: I am not a maintainer, ... You know the rest of that drill. :-)

Keith

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 0/4] Remove TYPE_TAG_NAME
  2018-04-17 19:51 [RFA 0/4] Remove TYPE_TAG_NAME Tom Tromey
                   ` (3 preceding siblings ...)
  2018-04-17 19:51 ` [RFA 2/4] Thread language through c_type_print_args Tom Tromey
@ 2018-04-18 16:57 ` Keith Seitz
  2018-05-09 15:42 ` Tom Tromey
  5 siblings, 0 replies; 16+ messages in thread
From: Keith Seitz @ 2018-04-18 16:57 UTC (permalink / raw)
  To: Tom Tromey, gdb-patches

On 04/17/2018 12:51 PM, Tom Tromey wrote:
> As mentioned on the list, here is the series to remove TYPE_TAG_NAME.
> 
> I think each patch is relatively self-explanatory, so I won't describe
> them further here.

Awesome!

I've looked over all the patches, and I have only some minor comments on patch #3 to which I'll follow-up there.

Thank you so much for doing this. This is something that I keep forgetting to look into -- for many years now!

Keith

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 2/4] Thread language through c_type_print_args
  2018-04-17 19:51 ` [RFA 2/4] Thread language through c_type_print_args Tom Tromey
@ 2018-04-18 17:53   ` Tom Tromey
  2018-05-31  1:37   ` Joel Brobecker
  1 sibling, 0 replies; 16+ messages in thread
From: Tom Tromey @ 2018-04-18 17:53 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

>>>>> "Tom" == Tom Tromey <tom@tromey.com> writes:

Tom> Currently dwarf2read.c will pass the CU's language to
Tom> c_type_print_args -- but this doesn't affect all aspects of type
Tom> printing, because some code in c-typeprint.c refers to
Tom> current_language.

Tom> This patch threads the language through more of the type printing
Tom> code, adding an overload to c_type_print.  Some uses of
Tom> current_language remain, but now they are only in top-level functions.

Today I was wondering whether it would be better to put the language
into the type_print_options.  So, I think that is something to consider
during review.

Tom

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 3/4] Remove TYPE_TAG_NAME
  2018-04-18 16:57   ` Keith Seitz
@ 2018-04-18 17:57     ` Tom Tromey
  2018-04-18 18:06       ` Keith Seitz
  0 siblings, 1 reply; 16+ messages in thread
From: Tom Tromey @ 2018-04-18 17:57 UTC (permalink / raw)
  To: Keith Seitz; +Cc: Tom Tromey, gdb-patches

>>>>> "Keith" == Keith Seitz <keiths@redhat.com> writes:

>> +      /* If we have "typedef struct foo {. . .} bar;" do we want to
>> +	 print it as "struct foo" or as "bar"?  Pick the latter for
>> +	 C++, because C++ folk tend to expect things like "class5
>> +	 *foo" rather than "struct class5 *foo".  */
>> +      if (language == language_c || language == language_minimal)

Keith> I'm almost afraid to ask, but why was language_minimal necessary here?
Keith> A small comment might be appropriate?
Keith> [I think I can already guess the heinous reason...] Do you know if
Keith> there is a test case that specifically covers this block with
Keith> language_minimal?

I think in this case, I added language_minimal on the theory that it is
"C-like".  I don't think there's a test case.

I can add a comment, and a test case wouldn't be too hard either.

Keith> Good riddance! I never did understand the "except by poorly
Keith> designed C++ code" comment.

Haha, me neither.  I always considered it a critique of some other code
elsewhere in gdb (perhaps long since removed) but who knows.

>> gdb_test "ptype \$structreg" \
>> "type = struct struct1 {\r\n *v4int8 v4;\r\n *v2int16 v2;\r\n}"

Keith> <rhetorical>Was the tag name never printed until now?</rhetorical> Wow!

Maybe I should have investigated this one more deeply?
I dunno.  The change seemed to make sense to me so I just moved on.

Tom

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 3/4] Remove TYPE_TAG_NAME
  2018-04-18 17:57     ` Tom Tromey
@ 2018-04-18 18:06       ` Keith Seitz
  0 siblings, 0 replies; 16+ messages in thread
From: Keith Seitz @ 2018-04-18 18:06 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

On 04/18/2018 10:57 AM, Tom Tromey wrote:
>>>>>> "Keith" == Keith Seitz <keiths@redhat.com> writes:
> 
>>> +      /* If we have "typedef struct foo {. . .} bar;" do we want to
>>> +	 print it as "struct foo" or as "bar"?  Pick the latter for
>>> +	 C++, because C++ folk tend to expect things like "class5
>>> +	 *foo" rather than "struct class5 *foo".  */
>>> +      if (language == language_c || language == language_minimal)
> 
> Keith> I'm almost afraid to ask, but why was language_minimal necessary here?
> Keith> A small comment might be appropriate?
> Keith> [I think I can already guess the heinous reason...] Do you know if
> Keith> there is a test case that specifically covers this block with
> Keith> language_minimal?
> 
> I think in this case, I added language_minimal on the theory that it is
> "C-like".  I don't think there's a test case.
> 
> I can add a comment, and a test case wouldn't be too hard either.

Seeing "language_minimal" caught me off guard. A comment would more than satisfy me.

> 
>>> gdb_test "ptype \$structreg" \
>>> "type = struct struct1 {\r\n *v4int8 v4;\r\n *v2int16 v2;\r\n}"
> 
> Keith> <rhetorical>Was the tag name never printed until now?</rhetorical> Wow!
> 
> Maybe I should have investigated this one more deeply?
> I dunno.  The change seemed to make sense to me so I just moved on.

I agree. My rhetorical "question" was really more a statement of disbelief. Things like this seem to catch me by surprise every so often -- sometimes more often than not.

Keith

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 0/4] Remove TYPE_TAG_NAME
  2018-04-17 19:51 [RFA 0/4] Remove TYPE_TAG_NAME Tom Tromey
                   ` (4 preceding siblings ...)
  2018-04-18 16:57 ` [RFA 0/4] Remove TYPE_TAG_NAME Keith Seitz
@ 2018-05-09 15:42 ` Tom Tromey
  2018-05-25 17:30   ` Tom Tromey
  5 siblings, 1 reply; 16+ messages in thread
From: Tom Tromey @ 2018-05-09 15:42 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

>>>>> "Tom" == Tom Tromey <tom@tromey.com> writes:

Tom> As mentioned on the list, here is the series to remove TYPE_TAG_NAME.
Tom> I think each patch is relatively self-explanatory, so I won't describe
Tom> them further here.

Tom> Regression tested by the buildbot.

Ping.

Tom

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 0/4] Remove TYPE_TAG_NAME
  2018-05-09 15:42 ` Tom Tromey
@ 2018-05-25 17:30   ` Tom Tromey
  0 siblings, 0 replies; 16+ messages in thread
From: Tom Tromey @ 2018-05-25 17:30 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

>>>>> "Tom" == Tom Tromey <tom@tromey.com> writes:

>>>>> "Tom" == Tom Tromey <tom@tromey.com> writes:
Tom> As mentioned on the list, here is the series to remove TYPE_TAG_NAME.
Tom> I think each patch is relatively self-explanatory, so I won't describe
Tom> them further here.

Tom> Regression tested by the buildbot.

Tom> Ping.

Ping.

Tom

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 1/4] Make c_type_print_varspec_suffix static
  2018-04-17 19:51 ` [RFA 1/4] Make c_type_print_varspec_suffix static Tom Tromey
@ 2018-05-31  1:33   ` Joel Brobecker
  0 siblings, 0 replies; 16+ messages in thread
From: Joel Brobecker @ 2018-05-31  1:33 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

Hi Tom,

On Tue, Apr 17, 2018 at 01:51:22PM -0600, Tom Tromey wrote:
> I noticed that c_type_print_varspec_suffix is only called from
> c-typeprint.c, so this patch makes it "static".
> 
> ChangeLog
> 2018-04-17  Tom Tromey  <tom@tromey.com>
> 
> 	* typeprint.h (c_type_print_varspec_suffix): Don't declare.
> 	* c-typeprint.c (c_type_print_varspec_suffix): Now static.

So very sorry again for how long it's taking to review your patches.
This one is fairly clearly an improvement on its own, so approved.

-- 
Joel

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 2/4] Thread language through c_type_print_args
  2018-04-17 19:51 ` [RFA 2/4] Thread language through c_type_print_args Tom Tromey
  2018-04-18 17:53   ` Tom Tromey
@ 2018-05-31  1:37   ` Joel Brobecker
  1 sibling, 0 replies; 16+ messages in thread
From: Joel Brobecker @ 2018-05-31  1:37 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

> Currently dwarf2read.c will pass the CU's language to
> c_type_print_args -- but this doesn't affect all aspects of type
> printing, because some code in c-typeprint.c refers to
> current_language.
> 
> This patch threads the language through more of the type printing
> code, adding an overload to c_type_print.  Some uses of
> current_language remain, but now they are only in top-level functions.
> 
> ChangeLog
> 2018-04-17  Tom Tromey  <tom@tromey.com>
> 
> 	* dwarf2read.c (dwarf2_compute_name): Pass CU's language to
> 	c_print_type.
> 	* c-typeprint.c (c_print_type_1): Add "language" parameter.
> 	(c_print_type): Update.
> 	(c_print_type): New overload.
> 	(c_type_print_varspec_prefix, c_type_print_args)
> 	(c_type_print_varspec_suffix, c_print_type_no_offsets)
> 	(c_type_print_base_struct_union, c_type_print_base_1)
> 	(cp_type_print_method_args): Add "language" parameter.
> 	(c_type_print_base): Update.
> 	* c-lang.h (c_print_type): Add new overload.

Neat use of overloading to avoid having to manage a potentially
large number of callers all at once...

You mentioned as a follow up that you were wondering about putting
the language in struct type_print_options. I can see why it is
an option, and I wouldn't object to it, but at the moment, the
approach with adding it as a parameter feels better. I think it's
more consistent with what we've been doing before. I could be
convinced otherwise.

In the meantime, this patch is approved.

-- 
Joel

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 3/4] Remove TYPE_TAG_NAME
  2018-04-17 19:51 ` [RFA 3/4] Remove TYPE_TAG_NAME Tom Tromey
  2018-04-18 16:57   ` Keith Seitz
@ 2018-05-31  2:35   ` Joel Brobecker
  1 sibling, 0 replies; 16+ messages in thread
From: Joel Brobecker @ 2018-05-31  2:35 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

> TYPE_TAG_NAME has been an occasional source of confusion and bugs.  It
> seems to me that it is only useful for C and C++ -- but even there,
> not so much, because at least with DWARF there doesn't seem to be any
> way to wind up with a type where the name and the tag name are both
> non-NULL and different.
> 
> So, this patch removes TYPE_TAG_NAME entirely.  This should save a
> little memory, but more importantly, it simplifies this part of gdb.
> 
> A few minor test suite adjustments were needed.  In some situations
> the new code does not yield identical output to the old code.
> 
> ChangeLog
> 2018-04-17  Tom Tromey  <tom@tromey.com>
> 
> 	* valops.c (enum_constant_from_type, value_namespace_elt)
> 	(value_maybe_namespace_elt): Update.
> 	* valarith.c (find_size_for_pointer_math): Update.
> 	* target-descriptions.c (make_gdb_type): Update.
> 	* symmisc.c (print_symbol): Update.
> 	* stabsread.c (define_symbol, read_type)
> 	(complain_about_struct_wipeout, add_undefined_type)
> 	(cleanup_undefined_types_1): Update.
> 	* rust-lang.c (rust_tuple_type_p, rust_slice_type_p)
> 	(rust_range_type_p, val_print_struct, rust_print_struct_def)
> 	(rust_internal_print_type, rust_composite_type)
> 	(rust_evaluate_funcall, rust_evaluate_subexp): Update.
> 	* python/py-type.c (typy_get_tag): Update.
> 	* p-typeprint.c (pascal_type_print_base): Update.
> 	* mdebugread.c (parse_symbol, parse_type): Update.
> 	* m2-typeprint.c (m2_long_set, m2_record_fields, m2_enum):
> 	Update.
> 	* guile/scm-type.c (gdbscm_type_tag): Update.
> 	* go-lang.c (sixg_string_p): Update.
> 	* gnu-v3-abi.c (build_gdb_vtable_type, build_std_type_info_type):
> 	Update.
> 	* gdbtypes.h (struct main_type) <tag_name>: Remove.
> 	(TYPE_TAG_NAME): Remove.
> 	* gdbtypes.c (type_name_no_tag): Simplify.
> 	(check_typedef, check_types_equal, recursive_dump_type)
> 	(copy_type_recursive, arch_composite_type): Update.
> 	* f-typeprint.c (f_type_print_base): Update.  Print "Type" prefix
> 	in summary mode when needed.
> 	* eval.c (evaluate_funcall): Update.
> 	* dwarf2read.c (fixup_go_packaging, read_structure_type)
> 	(process_structure_scope, read_enumeration_type)
> 	(read_namespace_type, read_module_type, determine_prefix): Update.
> 	* cp-support.c (inspect_type): Update.
> 	* coffread.c (process_coff_symbol, decode_base_type): Update.
> 	* c-varobj.c (c_is_path_expr_parent): Update.
> 	* c-typeprint.c (c_type_print_base_struct_union): Update.
> 	(c_type_print_base_1): Update.  Print struct/class/union/enum in
> 	summary when using C language.
> 	* ax-gdb.c (gen_struct_ref, gen_namespace_elt)
> 	(gen_maybe_namespace_elt): Update.
> 	* ada-lang.c (ada_type_name): Simplify.
> 	(empty_record, ada_template_to_fixed_record_type_1)
> 	(template_to_static_fixed_type)
> 	(to_record_with_fixed_variant_part, ada_check_typedef): Update.
> 
> testsuite/ChangeLog
> 2018-04-17  Tom Tromey  <tom@tromey.com>
> 
> 	* gdb.xml/tdesc-regs.exp (load_description): Update expected
> 	results.
> 	* gdb.dwarf2/method-ptr.exp: Set language to C++.
> 	* gdb.dwarf2/member-ptr-forwardref.exp: Set language to C++.
> 	* gdb.cp/typeid.exp (do_typeid_tests): Update type_re.
> 	* gdb.base/maint.exp (maint_pass_if): Update.

This looks good to me. Perhaps add the comment that Keith mentioned
about the use of language_minimal in c_type_print_base_1. Sometimes,
I wonder whether we might have over-engineered that thing.

Thanks!
-- 
Joel

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [RFA 4/4] Remove type_name_no_tag and rename type_name_no_tag_or_error
  2018-04-17 19:51 ` [RFA 4/4] Remove type_name_no_tag and rename type_name_no_tag_or_error Tom Tromey
@ 2018-05-31  6:22   ` Joel Brobecker
  0 siblings, 0 replies; 16+ messages in thread
From: Joel Brobecker @ 2018-05-31  6:22 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

> type_name_no_tag is just a plain wrapper for TYPE_NAME now, so this
> patch removes it.  And, because tag names no longer exist, this
> renames type_name_no_tag_or_error to type_name_or_error.
> 
> ChangeLog
> 2018-04-17  Tom Tromey  <tom@tromey.com>
> 
> 	* valops.c (value_cast_structs, destructor_name_p): Update.
> 	* symtab.c (gdb_mangle_name): Update.
> 	* stabsread.c (define_symbol, read_cpp_abbrev, read_baseclasses):
> 	Update.
> 	* p-valprint.c (pascal_object_is_vtbl_ptr_type)
> 	(pascal_object_print_value_fields, pascal_object_print_value):
> 	Update.
> 	* p-typeprint.c (pascal_type_print_derivation_info): Update.
> 	* linespec.c (find_methods): Update.
> 	* gdbtypes.h (type_name_no_tag): Remove.
> 	(type_name_or_error): Rename from type_name_no_tag_or_error.
> 	* gdbtypes.c (type_name_no_tag): Remove.
> 	(type_name_or_error): Rename from type_name_no_tag_or_error.
> 	(lookup_struct_elt_type, check_typedef): Update.
> 	* expprint.c (print_subexp_standard): Update.
> 	* dwarf2read.c (dwarf2_add_field, load_partial_dies): Update.
> 	* d-namespace.c (d_lookup_nested_symbol): Update.
> 	* cp-valprint.c (cp_is_vtbl_ptr_type, cp_print_value_fields)
> 	(cp_print_class_member): Update.
> 	* cp-namespace.c (cp_lookup_nested_symbol): Update.
> 	* completer.c (add_struct_fields): Update.
> 	* c-typeprint.c (cp_type_print_derivation_info)
> 	(c_type_print_varspec_prefix, c_type_print_base_struct_union):
> 	Update.
> 	* ada-lang.c (parse_old_style_renaming, xget_renaming_scope)
> 	(ada_prefer_type, ada_is_exception_sym): Update.

Looks good, Tom! (approved)

-- 
Joel

^ permalink raw reply	[flat|nested] 16+ messages in thread

end of thread, other threads:[~2018-05-31  1:37 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-04-17 19:51 [RFA 0/4] Remove TYPE_TAG_NAME Tom Tromey
2018-04-17 19:51 ` [RFA 1/4] Make c_type_print_varspec_suffix static Tom Tromey
2018-05-31  1:33   ` Joel Brobecker
2018-04-17 19:51 ` [RFA 3/4] Remove TYPE_TAG_NAME Tom Tromey
2018-04-18 16:57   ` Keith Seitz
2018-04-18 17:57     ` Tom Tromey
2018-04-18 18:06       ` Keith Seitz
2018-05-31  2:35   ` Joel Brobecker
2018-04-17 19:51 ` [RFA 4/4] Remove type_name_no_tag and rename type_name_no_tag_or_error Tom Tromey
2018-05-31  6:22   ` Joel Brobecker
2018-04-17 19:51 ` [RFA 2/4] Thread language through c_type_print_args Tom Tromey
2018-04-18 17:53   ` Tom Tromey
2018-05-31  1:37   ` Joel Brobecker
2018-04-18 16:57 ` [RFA 0/4] Remove TYPE_TAG_NAME Keith Seitz
2018-05-09 15:42 ` Tom Tromey
2018-05-25 17:30   ` Tom Tromey

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